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CVE-2020-13396

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has...

7.1 HighFix available

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
Low

Exploit likelihood

2.34%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.1

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
CVE-2020-13396
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
CVSS 2.0
5.5 MediumAV:N/AC:L/Au:S/C:P/I:N/A:P
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
CVE-2020-13396
Updated
2026-11-02
EUVDEUVD-2020-5653 No score

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
EUVD-2020-5653
Updated
2026-11-03
GitHub AdvisoriesGHSA-5cv3-wf6w-ffmx 7.1

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has...

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
GHSA-5cv3-wf6w-ffmx
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Weakness
CWE-125
Updated
2026-11-02
OSVALPINE-CVE-2020-13396 7.1

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
ALPINE-CVE-2020-13396
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-03
OSV 7.1

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
CVE-2020-13396
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
Show 15 moreShow less
OSVDEBIAN-CVE-2020-13396 7.1

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
DEBIAN-CVE-2020-13396
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
OSVRHSA-2020:4031 7.1

Red Hat Security Advisory: freerdp security, bug fix, and enhancement update

Record
RHSA-2020:4031
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
OSVRHSA-2020:4647 7.1

Red Hat Security Advisory: freerdp and vinagre security, bug fix, and enhancement update

Record
RHSA-2020:4647
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
OSVRLSA-2020:4647 7.1

Moderate: freerdp and vinagre security, bug fix, and enhancement update

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

The vinagre packages provide the Vinagre remote desktop viewer for the GNOME desktop.

The following packages have been upgraded to a later upstream version: freerdp (2.1.1). (BZ#1834287)

Security Fix(es):

  • freerdp: Out of bound read in cliprdr_server_receive_capabilities (CVE-2020-11018)

  • freerdp: Out of bound read/write in usb redirection channel (CVE-2020-11039)

  • freerdp: out-of-bounds read in update_read_icon_info function (CVE-2020-11042)

  • freerdp: out-of-bounds read in autodetect_recv_bandwidth_measure_results function (CVE-2020-11047)

  • freerdp: Out-of-bounds read in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c. (CVE-2020-13396)

  • freerdp: Out-of-bounds read in security_fips_decrypt in libfreerdp/core/security.c (CVE-2020-13397)

  • freerdp: Out of bound read in update_recv could result in a crash (CVE-2020-11019)

  • freerdp: Integer overflow in VIDEO channel (CVE-2020-11038)

  • freerdp: Out of bound access in clear_decompress_subcode_rlex (CVE-2020-11040)

  • freerdp: Unchecked read of array offset in rdpsnd_recv_wave2_pdu (CVE-2020-11041)

  • freerdp: out of bound read in rfx_process_message_tileset (CVE-2020-11043)

  • freerdp: double free in update_read_cache_bitmap_v3_order function (CVE-2020-11044)

  • freerdp: out of bounds read in update_read_bitmap_data function (CVE-2020-11045)

  • freerdp: out of bounds seek in update_read_synchronize function could lead out of bounds read (CVE-2020-11046)

  • freerdp: out-of-bounds read could result in aborting the session (CVE-2020-11048)

  • freerdp: out-of-bound read of client memory that is then passed on to the protocol parser (CVE-2020-11049)

  • freerdp: stream out-of-bounds seek in rdp_read_font_capability_set could lead to out-of-bounds read (CVE-2020-11058)

  • freerdp: out-of-bounds read in cliprdr_read_format_list function (CVE-2020-11085)

  • freerdp: out-of-bounds read in ntlm_read_ntlm_v2_client_challenge function (CVE-2020-11086)

  • freerdp: out-of-bounds read in ntlm_read_AuthenticateMessage (CVE-2020-11087)

  • freerdp: out-of-bounds read in ntlm_read_NegotiateMessage (CVE-2020-11088)

  • freerdp: out-of-bounds read in irp functions (CVE-2020-11089)

  • freerdp: out-of-bounds read in gdi.c (CVE-2020-11522)

  • freerdp: out-of-bounds read in bitmap.c (CVE-2020-11525)

  • freerdp: Stream pointer out of bounds in update_recv_secondary_order could lead out of bounds read later (CVE-2020-11526)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.3 Release Notes linked from the References section.

Record
RLSA-2020:4647
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13396 7.1

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Record
UBUNTU-CVE-2020-13396
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
OSVALSA-2020:4647 No score

Moderate: freerdp and vinagre security, bug fix, and enhancement update

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

The vinagre packages provide the Vinagre remote desktop viewer for the GNOME desktop.

The following packages have been upgraded to a later upstream version: freerdp (2.1.1). (BZ#1834287)

Security Fix(es):

  • freerdp: Out of bound read in cliprdr_server_receive_capabilities (CVE-2020-11018)

  • freerdp: Out of bound read/write in usb redirection channel (CVE-2020-11039)

  • freerdp: out-of-bounds read in update_read_icon_info function (CVE-2020-11042)

  • freerdp: out-of-bounds read in autodetect_recv_bandwidth_measure_results function (CVE-2020-11047)

  • freerdp: Out-of-bounds read in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c. (CVE-2020-13396)

  • freerdp: Out-of-bounds read in security_fips_decrypt in libfreerdp/core/security.c (CVE-2020-13397)

  • freerdp: Out of bound read in update_recv could result in a crash (CVE-2020-11019)

  • freerdp: Integer overflow in VIDEO channel (CVE-2020-11038)

  • freerdp: Out of bound access in clear_decompress_subcode_rlex (CVE-2020-11040)

  • freerdp: Unchecked read of array offset in rdpsnd_recv_wave2_pdu (CVE-2020-11041)

  • freerdp: out of bound read in rfx_process_message_tileset (CVE-2020-11043)

  • freerdp: double free in update_read_cache_bitmap_v3_order function (CVE-2020-11044)

  • freerdp: out of bounds read in update_read_bitmap_data function (CVE-2020-11045)

  • freerdp: out of bounds seek in update_read_synchronize function could lead out of bounds read (CVE-2020-11046)

  • freerdp: out-of-bounds read could result in aborting the session (CVE-2020-11048)

  • freerdp: out-of-bound read of client memory that is then passed on to the protocol parser (CVE-2020-11049)

  • freerdp: stream out-of-bounds seek in rdp_read_font_capability_set could lead to out-of-bounds read (CVE-2020-11058)

  • freerdp: out-of-bounds read in cliprdr_read_format_list function (CVE-2020-11085)

  • freerdp: out-of-bounds read in ntlm_read_ntlm_v2_client_challenge function (CVE-2020-11086)

  • freerdp: out-of-bounds read in ntlm_read_AuthenticateMessage (CVE-2020-11087)

  • freerdp: out-of-bounds read in ntlm_read_NegotiateMessage (CVE-2020-11088)

  • freerdp: out-of-bounds read in irp functions (CVE-2020-11089)

  • freerdp: out-of-bounds read in gdi.c (CVE-2020-11522)

  • freerdp: out-of-bounds read in bitmap.c (CVE-2020-11525)

  • freerdp: Stream pointer out of bounds in update_recv_secondary_order could lead out of bounds read later (CVE-2020-11526)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Record
ALSA-2020:4647
Updated
2026-11-05
OSVMGASA-2020-0297 No score

Updated freerdp/remmina packages fix security vulnerability

It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly exeucte arbitrary code.

The freerdp package has been updated to version 2.1.2 to fix these issues.

Also, the remmina package has been updated to version 1.4.7 for compatibility with the updated freerdp.

Record
MGASA-2020-0297
Updated
2026-11-02
OSVopenSUSE-SU-2020:1090-1 No score

Security update for freerdp

This update for freerdp fixes the following issues:

frerdp was updated to version 2.1.2 (bsc#1171441,bsc#1173247 and jsc#ECO-2006):

  • CVE-2020-11017: Fixed a double free which could have denied the server's service.
  • CVE-2020-11018: Fixed an out of bounds read which a malicious clients could have triggered.
  • CVE-2020-11019: Fixed an issue which could have led to denial of service if logger was set to 'WLOG_TRACE'.
  • CVE-2020-11038: Fixed a buffer overflow when /video redirection was used.
  • CVE-2020-11039: Fixed an issue which could have allowed arbitrary memory read and write when USB redirection was enabled.
  • CVE-2020-11040: Fixed an out of bounds data read in clear_decompress_subcode_rlex.
  • CVE-2020-11041: Fixed an issue with the configuration for sound backend which could have led to server's denial of service.
  • CVE-2020-11043: Fixed an out of bounds read in rfx_process_message_tileset.
  • CVE-2020-11085: Fixed an out of bounds read in cliprdr_read_format_list.
  • CVE-2020-11086: Fixed an out of bounds read in ntlm_read_ntlm_v2_client_challenge.
  • CVE-2020-11087: Fixed an out of bounds read in ntlm_read_AuthenticateMessage.
  • CVE-2020-11088: Fixed an out of bounds read in ntlm_read_NegotiateMessage.
  • CVE-2020-11089: Fixed an out of bounds read in irp function family.
  • CVE-2020-11095: Fixed a global out of bounds read in update_recv_primary_order.
  • CVE-2020-11096: Fixed a global out of bounds read in update_read_cache_bitmap_v3_order.
  • CVE-2020-11097: Fixed an out of bounds read in ntlm_av_pair_get.
  • CVE-2020-11098: Fixed an out of bounds read in glyph_cache_put.
  • CVE-2020-11099: Fixed an out of bounds Read in license_read_new_or_upgrade_license_packet.
  • CVE-2020-11521: Fixed an out of bounds write in planar.c (bsc#1171443).
  • CVE-2020-11522: Fixed an out of bounds read in gdi.c (bsc#1171444).
  • CVE-2020-11523: Fixed an integer overflow in region.c (bsc#1171445).
  • CVE-2020-11524: Fixed an out of bounds write in interleaved.c (bsc#1171446).
  • CVE-2020-11525: Fixed an out of bounds read in bitmap.c (bsc#1171447).
  • CVE-2020-11526: Fixed an out of bounds read in update_recv_secondary_order (bsc#1171674).
  • CVE-2020-13396: Fixed an Read in ntlm_read_ChallengeMessage.
  • CVE-2020-13397: Fixed an out of bounds read in security_fips_decrypt due to uninitialized value.
  • CVE-2020-13398: Fixed an out of bounds write in crypto_rsa_common.
  • CVE-2020-4030: Fixed an out of bounds read in TrioParse.
  • CVE-2020-4031: Fixed a use after free in gdi_SelectObject.
  • CVE-2020-4032: Fixed an integer casting in update_recv_secondary_order.
  • CVE-2020-4033: Fixed an out of bound read in RLEDECOMPRESS.
  • Fixed an issue where freerdp failed with -fno-common (bsc#1169748).
  • Fixed an issue where USB redirection with FreeRDP was not working (bsc#1169679).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Record
openSUSE-SU-2020:1090-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10768-1 No score

freerdp-2.4.0-2.1 on GA media

These are all security issues fixed in the freerdp-2.4.0-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10768-1
Updated
2026-11-02
OSVSUSE-SU-2020:2032-1 No score

Security update for freerdp

This update for freerdp fixes the following issues:

frerdp was updated to version 2.1.2 (bsc#1171441,bsc#1173247 and jsc#ECO-2006):

  • CVE-2020-11017: Fixed a double free which could have denied the server's service.
  • CVE-2020-11018: Fixed an out of bounds read which a malicious clients could have triggered.
  • CVE-2020-11019: Fixed an issue which could have led to denial of service if logger was set to 'WLOG_TRACE'.
  • CVE-2020-11038: Fixed a buffer overflow when /video redirection was used.
  • CVE-2020-11039: Fixed an issue which could have allowed arbitrary memory read and write when USB redirection was enabled.
  • CVE-2020-11040: Fixed an out of bounds data read in clear_decompress_subcode_rlex.
  • CVE-2020-11041: Fixed an issue with the configuration for sound backend which could have led to server's denial of service.
  • CVE-2020-11043: Fixed an out of bounds read in rfx_process_message_tileset.
  • CVE-2020-11085: Fixed an out of bounds read in cliprdr_read_format_list.
  • CVE-2020-11086: Fixed an out of bounds read in ntlm_read_ntlm_v2_client_challenge.
  • CVE-2020-11087: Fixed an out of bounds read in ntlm_read_AuthenticateMessage.
  • CVE-2020-11088: Fixed an out of bounds read in ntlm_read_NegotiateMessage.
  • CVE-2020-11089: Fixed an out of bounds read in irp function family.
  • CVE-2020-11095: Fixed a global out of bounds read in update_recv_primary_order.
  • CVE-2020-11096: Fixed a global out of bounds read in update_read_cache_bitmap_v3_order.
  • CVE-2020-11097: Fixed an out of bounds read in ntlm_av_pair_get.
  • CVE-2020-11098: Fixed an out of bounds read in glyph_cache_put.
  • CVE-2020-11099: Fixed an out of bounds Read in license_read_new_or_upgrade_license_packet.
  • CVE-2020-11521: Fixed an out of bounds write in planar.c (bsc#1171443).
  • CVE-2020-11522: Fixed an out of bounds read in gdi.c (bsc#1171444).
  • CVE-2020-11523: Fixed an integer overflow in region.c (bsc#1171445).
  • CVE-2020-11524: Fixed an out of bounds write in interleaved.c (bsc#1171446).
  • CVE-2020-11525: Fixed an out of bounds read in bitmap.c (bsc#1171447).
  • CVE-2020-11526: Fixed an out of bounds read in update_recv_secondary_order (bsc#1171674).
  • CVE-2020-13396: Fixed an Read in ntlm_read_ChallengeMessage.
  • CVE-2020-13397: Fixed an out of bounds read in security_fips_decrypt due to uninitialized value.
  • CVE-2020-13398: Fixed an out of bounds write in crypto_rsa_common.
  • CVE-2020-4030: Fixed an out of bounds read in TrioParse.
  • CVE-2020-4031: Fixed a use after free in gdi_SelectObject.
  • CVE-2020-4032: Fixed an integer casting in update_recv_secondary_order.
  • CVE-2020-4033: Fixed an out of bound read in RLEDECOMPRESS.
  • Fixed an issue where freerdp failed with -fno-common (bsc#1169748).
  • Fixed an issue where USB redirection with FreeRDP was not working (bsc#1169679).
Record
SUSE-SU-2020:2032-1
Updated
2026-11-02
OSVSUSE-SU-2020:2068-1 No score

Security update for freerdp

This update for freerdp fixes the following issues:

frerdp was updated to version 2.1.2 (bsc#1171441,bsc#1173247 and jsc#ECO-2006):

  • CVE-2020-11017: Fixed a double free which could have denied the server's service.
  • CVE-2020-11018: Fixed an out of bounds read which a malicious clients could have triggered.
  • CVE-2020-11019: Fixed an issue which could have led to denial of service if logger was set to 'WLOG_TRACE'.
  • CVE-2020-11038: Fixed a buffer overflow when /video redirection was used.
  • CVE-2020-11039: Fixed an issue which could have allowed arbitrary memory read and write when USB redirection was enabled.
  • CVE-2020-11040: Fixed an out of bounds data read in clear_decompress_subcode_rlex.
  • CVE-2020-11041: Fixed an issue with the configuration for sound backend which could have led to server's denial of service.
  • CVE-2020-11043: Fixed an out of bounds read in rfx_process_message_tileset.
  • CVE-2020-11085: Fixed an out of bounds read in cliprdr_read_format_list.
  • CVE-2020-11086: Fixed an out of bounds read in ntlm_read_ntlm_v2_client_challenge.
  • CVE-2020-11087: Fixed an out of bounds read in ntlm_read_AuthenticateMessage.
  • CVE-2020-11088: Fixed an out of bounds read in ntlm_read_NegotiateMessage.
  • CVE-2020-11089: Fixed an out of bounds read in irp function family.
  • CVE-2020-11095: Fixed a global out of bounds read in update_recv_primary_order.
  • CVE-2020-11096: Fixed a global out of bounds read in update_read_cache_bitmap_v3_order.
  • CVE-2020-11097: Fixed an out of bounds read in ntlm_av_pair_get.
  • CVE-2020-11098: Fixed an out of bounds read in glyph_cache_put.
  • CVE-2020-11099: Fixed an out of bounds Read in license_read_new_or_upgrade_license_packet.
  • CVE-2020-11521: Fixed an out of bounds write in planar.c (bsc#1171443).
  • CVE-2020-11522: Fixed an out of bounds read in gdi.c (bsc#1171444).
  • CVE-2020-11523: Fixed an integer overflow in region.c (bsc#1171445).
  • CVE-2020-11524: Fixed an out of bounds write in interleaved.c (bsc#1171446).
  • CVE-2020-11525: Fixed an out of bounds read in bitmap.c (bsc#1171447).
  • CVE-2020-11526: Fixed an out of bounds read in update_recv_secondary_order (bsc#1171674).
  • CVE-2020-13396: Fixed an Read in ntlm_read_ChallengeMessage.
  • CVE-2020-13397: Fixed an out of bounds read in security_fips_decrypt due to uninitialized value.
  • CVE-2020-13398: Fixed an out of bounds write in crypto_rsa_common.
  • CVE-2020-4030: Fixed an out of bounds read in TrioParse.
  • CVE-2020-4031: Fixed a use after free in gdi_SelectObject.
  • CVE-2020-4032: Fixed an integer casting in update_recv_secondary_order.
  • CVE-2020-4033: Fixed an out of bound read in RLEDECOMPRESS.
  • Fixed an issue where freerdp failed with -fno-common (bsc#1169748).
  • Fixed an issue where USB redirection with FreeRDP was not working (bsc#1169679).
Record
SUSE-SU-2020:2068-1
Updated
2026-11-02
OSVSUSE-SU-2020:2272-1 No score

Security update for freerdp

This update for freerdp fixes the following issues:

freerdp was updated to version 2.1.2 (bsc#1171441,bsc#1173247 and jsc#ECO-2006):

  • CVE-2020-11017: Fixed a double free which could have denied the server's service.
  • CVE-2020-11018: Fixed an out of bounds read which a malicious clients could have triggered.
  • CVE-2020-11019: Fixed an issue which could have led to denial of service if logger was set to 'WLOG_TRACE'.
  • CVE-2020-11038: Fixed a buffer overflow when /video redirection was used.
  • CVE-2020-11039: Fixed an issue which could have allowed arbitrary memory read and write when USB redirection was enabled.
  • CVE-2020-11040: Fixed an out of bounds data read in clear_decompress_subcode_rlex.
  • CVE-2020-11041: Fixed an issue with the configuration for sound backend which could have led to server's denial of service.
  • CVE-2020-11043: Fixed an out of bounds read in rfx_process_message_tileset.
  • CVE-2020-11085: Fixed an out of bounds read in cliprdr_read_format_list.
  • CVE-2020-11086: Fixed an out of bounds read in ntlm_read_ntlm_v2_client_challenge.
  • CVE-2020-11087: Fixed an out of bounds read in ntlm_read_AuthenticateMessage.
  • CVE-2020-11088: Fixed an out of bounds read in ntlm_read_NegotiateMessage.
  • CVE-2020-11089: Fixed an out of bounds read in irp function family.
  • CVE-2020-11095: Fixed a global out of bounds read in update_recv_primary_order.
  • CVE-2020-11096: Fixed a global out of bounds read in update_read_cache_bitmap_v3_order.
  • CVE-2020-11097: Fixed an out of bounds read in ntlm_av_pair_get.
  • CVE-2020-11098: Fixed an out of bounds read in glyph_cache_put.
  • CVE-2020-11099: Fixed an out of bounds Read in license_read_new_or_upgrade_license_packet.
  • CVE-2020-11521: Fixed an out of bounds write in planar.c (bsc#1171443).
  • CVE-2020-11522: Fixed an out of bounds read in gdi.c (bsc#1171444).
  • CVE-2020-11523: Fixed an integer overflow in region.c (bsc#1171445).
  • CVE-2020-11524: Fixed an out of bounds write in interleaved.c (bsc#1171446).
  • CVE-2020-11525: Fixed an out of bounds read in bitmap.c (bsc#1171447).
  • CVE-2020-11526: Fixed an out of bounds read in update_recv_secondary_order (bsc#1171674).
  • CVE-2020-13396: Fixed an Read in ntlm_read_ChallengeMessage.
  • CVE-2020-13397: Fixed an out of bounds read in security_fips_decrypt due to uninitialized value.
  • CVE-2020-13398: Fixed an out of bounds write in crypto_rsa_common.
  • CVE-2020-4030: Fixed an out of bounds read in TrioParse.
  • CVE-2020-4031: Fixed a use after free in gdi_SelectObject.
  • CVE-2020-4032: Fixed an integer casting in update_recv_secondary_order.
  • CVE-2020-4033: Fixed an out of bound read in RLEDECOMPRESS.
  • Fixed an issue where freerdp failed with -fno-common (bsc#1169748).
  • Fixed an issue where USB redirection with FreeRDP was not working (bsc#1169679).
  • Fixed an issue where freerdp could not start (bsc#1129193).
  • Fixed an issue where copy and paste between remote host was transforming text to chinese (bsc#1004108).
  • Added pulse support (bsc#1090677).

Additionally, the following issue was fixed:

  • CVE-2020-15103: Fix integer overflow due to missing input sanitation in rdpegfx channel (bsc#1174321).
Record
SUSE-SU-2020:2272-1
Updated
2026-11-02
OSVUSN-4379-1 No score

freerdp2 vulnerabilities

It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly exeucte arbitrary code.

Record
USN-4379-1
Updated
2026-11-02
OSVUSN-4382-1 No score

freerdp vulnerabilities

It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code.

Record
USN-4382-1
Updated
2026-11-02
OSVUSN-4382-2 No score

freerdp vulnerabilities

It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code.

Record
USN-4382-2
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
freerdp
Alpine:v3.12
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.13
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.14
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.15
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.16
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.17
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.18
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.19
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.20
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.21
 before 2.0.0-r1
2.0.0-r1
Show 63 moreShow less
Affected packages
PackageAffectedFixed
freerdp
Alpine:v3.22
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.23
 before 2.0.0-r1
2.0.0-r1
freerdp
Alpine:v3.24
 before 2.0.0-r1
2.0.0-r1
freerdp2
Alpine:v3.22
 before 2.0.0-r1
2.0.0-r1
freerdp2
Alpine:v3.23
 before 2.0.0-r1
2.0.0-r1
freerdp2
Alpine:v3.24
 before 2.0.0-r1
2.0.0-r1
freerdp-devel
AlmaLinux:8
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
vinagre
AlmaLinux:8
From an advisory covering 25 CVEs
 before 3.22.0-23.el8
3.22.0-23.el8
freerdp2
Debian:12
 before 2.1.1+dfsg1-1
2.1.1+dfsg1-1
freerdp
Debian:9
From an advisory covering 14 CVEs
 before 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u4, plus listed versions
1.1.0~git20140921.1.440916e+dfsg1-131.1.0~git20140921.1.440916e+dfsg1-13+deb9u11.1.0~git20140921.1.440916e+dfsg1-13+deb9u21.1.0~git20140921.1.440916e+dfsg1-13+deb9u3
1.1.0~git20140921.1.440916e+dfsg1-13+deb9u4
freerdp2
Debian:10
From an advisory covering 46 CVEs
 before 2.3.0+dfsg1-2+deb10u3, plus listed versions
2.0.0~git20190204.1.2693389a+dfsg1-12.0.0~git20190204.1.2693389a+dfsg1-1+deb10u12.0.0~git20190204.1.2693389a+dfsg1-1+deb10u22.0.0~git20190204.1.2693389a+dfsg1-22.0.0~git20190204.1.2693389a+dfsg1-2~bpo10+1
Show 8 moreShow less
2.1.1+dfsg1-12.1.2+dfsg1-12.1.2+dfsg1-22.2.0+dfsg1-12.2.0+dfsg1-1~bpo10+12.3.0+dfsg1-12.3.0+dfsg1-1~bpo10+12.3.0+dfsg1-2
2.3.0+dfsg1-2+deb10u3
freerdp
Mageia:7
From an advisory covering 39 CVEs
 before 2.1.2-1.mga7
2.1.2-1.mga7
remmina
Mageia:7
From an advisory covering 39 CVEs
 before 1.4.7-1.mga7
1.4.7-1.mga7
freerdp
Red Hat:enterprise_linux:7::client
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-libs
Red Hat:enterprise_linux:7::client
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
libwinpr
Red Hat:enterprise_linux:7::client
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
libwinpr-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp
Red Hat:enterprise_linux:7::server
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-libs
Red Hat:enterprise_linux:7::server
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
libwinpr
Red Hat:enterprise_linux:7::server
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
libwinpr-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp
Red Hat:enterprise_linux:7::workstation
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-libs
Red Hat:enterprise_linux:7::workstation
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
libwinpr
Red Hat:enterprise_linux:7::workstation
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
libwinpr-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 25 CVEs
 before 0:2.1.1-2.el7
0:2.1.1-2.el7
freerdp
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-debugsource
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-libs
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-libs-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
libwinpr
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
libwinpr-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
libwinpr-devel
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
vinagre
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 0:3.22.0-23.el8
0:3.22.0-23.el8
vinagre-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 0:3.22.0-23.el8
0:3.22.0-23.el8
vinagre-debugsource
Red Hat:enterprise_linux:8::appstream
From an advisory covering 25 CVEs
 before 0:3.22.0-23.el8
0:3.22.0-23.el8
freerdp-debuginfo
Red Hat:enterprise_linux:8::crb
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-debugsource
Red Hat:enterprise_linux:8::crb
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-devel
Red Hat:enterprise_linux:8::crb
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
freerdp-libs-debuginfo
Red Hat:enterprise_linux:8::crb
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
libwinpr-debuginfo
Red Hat:enterprise_linux:8::crb
From an advisory covering 25 CVEs
 before 2:2.1.1-1.el8
2:2.1.1-1.el8
vinagre
Rocky Linux:8
From an advisory covering 25 CVEs
 before 0:3.22.0-23.el8
0:3.22.0-23.el8
freerdp
SUSE:Linux Enterprise Workstation Extension 15 SP1
From an advisory covering 31 CVEs
 before 2.1.2-10.15.1
2.1.2-10.15.1
freerdp
SUSE:Linux Enterprise Workstation Extension 15 SP2
From an advisory covering 31 CVEs
 before 2.1.2-15.7.1
2.1.2-15.7.1
freerdp
SUSE:Linux Enterprise Software Development Kit 12 SP5
From an advisory covering 46 CVEs
 before 2.1.2-12.20.1
2.1.2-12.20.1
freerdp
SUSE:Linux Enterprise Workstation Extension 12 SP5
From an advisory covering 46 CVEs
 before 2.1.2-12.20.1
2.1.2-12.20.1
vinagre
SUSE:Linux Enterprise Workstation Extension 12 SP5
From an advisory covering 46 CVEs
 before 3.20.2-16.3.3
3.20.2-16.3.3
freerdp
Ubuntu:16.04:LTS
 before 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4, plus listed versions
1.1.0~git20140921.1.440916e+dfsg1-5ubuntu11.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.21.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3
1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4
freerdp
Ubuntu:18.04:LTS
 before 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2, plus listed versions
1.1.0~git20140921.1.440916e+dfsg1-15ubuntu11.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1
1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2
freerdp2
Ubuntu:18.04:LTS
 before 2.1.1+dfsg1-0ubuntu0.18.04.1, plus listed versions
2.0.0~git20170725.1.1648deb+dfsg1-12.0.0~git20170725.1.1648deb+dfsg1-52.0.0~git20170725.1.1648deb+dfsg1-5ubuntu12.0.0~git20170725.1.1648deb+dfsg1-5ubuntu22.0.0~git20170725.1.1648deb+dfsg1-62.0.0~git20170725.1.1648deb+dfsg1-6build12.0.0~git20170725.1.1648deb+dfsg1-72.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1
2.1.1+dfsg1-0ubuntu0.18.04.1
freerdp2
Ubuntu:20.04:LTS
 before 2.1.1+dfsg1-0ubuntu0.20.04.1, plus listed versions
2.0.0~git20190204.1.2693389a+dfsg1-12.0.0~git20190204.1.2693389a+dfsg1-22.0.0~git20190204.1.2693389a+dfsg1-2build12.0.0~git20190204.1.2693389a+dfsg1-2build2
2.1.1+dfsg1-0ubuntu0.20.04.1
freerdp2
Ubuntu:18.04:LTS
From an advisory covering 19 CVEs
 before 2.1.1+dfsg1-0ubuntu0.18.04.1, plus listed versions
2.0.0~git20170725.1.1648deb+dfsg1-12.0.0~git20170725.1.1648deb+dfsg1-52.0.0~git20170725.1.1648deb+dfsg1-5ubuntu12.0.0~git20170725.1.1648deb+dfsg1-5ubuntu22.0.0~git20170725.1.1648deb+dfsg1-62.0.0~git20170725.1.1648deb+dfsg1-6build12.0.0~git20170725.1.1648deb+dfsg1-72.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1
2.1.1+dfsg1-0ubuntu0.18.04.1
freerdp2
Ubuntu:20.04:LTS
From an advisory covering 19 CVEs
 before 2.1.1+dfsg1-0ubuntu0.20.04.1, plus listed versions
2.0.0~git20190204.1.2693389a+dfsg1-12.0.0~git20190204.1.2693389a+dfsg1-22.0.0~git20190204.1.2693389a+dfsg1-2build12.0.0~git20190204.1.2693389a+dfsg1-2build2
2.1.1+dfsg1-0ubuntu0.20.04.1
freerdp
Ubuntu:16.04:LTS
From an advisory covering 14 CVEs
 before 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4, plus listed versions
1.1.0~git20140921.1.440916e+dfsg1-5ubuntu11.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.21.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3
1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4
freerdp
Ubuntu:18.04:LTS
From an advisory covering 13 CVEs
 before 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2, plus listed versions
1.1.0~git20140921.1.440916e+dfsg1-15ubuntu11.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1
1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2
freerdp
openSUSE:Leap 15.1
From an advisory covering 31 CVEs
 before 2.1.2-lp151.5.6.1
2.1.2-lp151.5.6.1
freerdp2
openSUSE:Tumbleweed
From an advisory covering 42 CVEs
 before 2.4.0-2.1
2.4.0-2.1

History

History
RecordedChangedSources
affected
facts, referencesOSV
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-13396 is a high vulnerability (CVSS 7.1) in Freerdp, published May 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.34%, the 83rd percentile. Fixed in freerdp 2.0.0-r1.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 128 references. The JSON record has them.

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