CVE-2019-6256
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in...
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.8
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
- Record
CVE-2019-6256- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-755
- Updated
- 2026-11-02
CVE List No score
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
- Record
CVE-2019-6256- Updated
- 2026-11-02
EUVDEUVD-2019-15823 No score
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
- Record
EUVD-2019-15823- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j293-2f59-6wr3
9.8
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in...
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
- Record
GHSA-j293-2f59-6wr3- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-755
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-6256
9.8
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
- Record
DEBIAN-CVE-2019-6256- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-6256
9.8
A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.
- Record
UBUNTU-CVE-2019-6256- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2019:0058-1 No score
Security update for live555
This update fixes two security issues in live555:
- CVE-2018-4013: Remote code execution vulnerability (bsc#1114779)
- CVE-2019-6256: Denial of Service issue with RTSP-over-HTTP tunneling via x-sessioncookie HTTP headers (boo#1121892)
This library is statically linked into VLC. However VLC is not affected because it only uses the live555 library to implement the RTSP client.
- Record
openSUSE-SU-2019:0058-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11023-1 No score
libBasicUsageEnvironment1-2021.08.23-1.2 on GA media
These are all security issues fixed in the libBasicUsageEnvironment1-2021.08.23-1.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11023-1- Updated
- 2026-11-02
OSVUSN-4853-1 No score
liblivemedia vulnerabilities
It was discovered that liveMedia incorrectly handled certain network packets. An attacker could possibly use this issue to execute arbitrary code. (CVE-2018-4013)
It was discovered that liveMedia incorrectly handled certain network sessions. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-6256)
It was discovered that liveMedia incorrectly handled certain RTSP streamings. An attacker could possiby use this issue to cause a denial of service or other unspecified impact. (CVE-2019-7314)
It was discovered that liveMedia incorrectly handled certain requests. An attacker could possibly use this issue to obtain sensitive information. (CVE-2019-9215)
- Record
USN-4853-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
liblivemediaDebian:14 |
before 2018.11.26-1, plus listed versions 2004.11.11a-12005.04.01-12005.06.16-12005.07.21-12005.10.05-1 Show 45 moreShow less2006.03.17-12006.03.17-22007.02.20-12007.02.20-22008.07.25-12008.07.25-22009.11.27-12010.02.10-12010.04.09-12010.11.17-12011.03.14-12011.05.25-12011.06.16-12011.07.08-12011.07.21-12011.08.22-12011.09.02-12011.12.23-12012.02.04-12012.02.29-12012.02.29-22012.04.04-12012.04.21-12012.05.03-12012.05.03-1~bpo60+12012.05.17-12012.05.17-1+wheezy12012.05.17-1~bpo60+12012.08.31-12012.10.24-12012.11.16-12012.11.30-12013.01.05-12013.01.05-22013.01.05-32013.01.15-12013.04.30-12013.10.25-12014.01.13-12015.12.22-12016.01.12-12016.01.16-12016.01.20-12016.01.29-12016.01.29-2 |
2018.11.26-1 |
liblivemediaDebian:8 |
before 2014.01.13-1+deb8u2, plus listed versions 2014.01.13-12014.01.13-1+deb8u1 |
2014.01.13-1+deb8u2 |
liblivemediaDebian:9 |
before 2016.11.28-1+deb9u2, plus listed versions 2016.11.28-12016.11.28-1+deb9u1 |
2016.11.28-1+deb9u2 |
liblivemediaUbuntu:Pro:16.04:LTS |
before 2016.02.09-1ubuntu0.1~esm1, plus listed versions 2014.01.13-12016.01.29-22016.02.09-1 |
2016.02.09-1ubuntu0.1~esm1 |
liblivemediaUbuntu:Pro:18.04:LTS |
before 2018.02.18-1ubuntu0.1~esm1, plus listed versions 2017.07.18-12017.09.12-1ubuntu12017.10.28-22018.01.29-12018.02.18-1 |
2018.02.18-1ubuntu0.1~esm1 |
live555SUSE:Package Hub 15 |
before 2018.12.14-bp150.3.3.1 | 2018.12.14-bp150.3.3.1 |
live555openSUSE:Leap 15.0 |
before 2018.12.14-bp150.3.3.1 | 2018.12.14-bp150.3.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-6256 is a critical vulnerability (CVSS 9.8) in Live555 Media Server, published January 14, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.44%, the 84th percentile. Fixed in liblivemedia 2018.11.26-1.
References
lists.debian.org/debian-lts-announce/2019/02/msg00037.html
github.com/rgaufman/live555/issues/19
seclists.org/bugtraq/2019/Mar/22
debian.org/security/2019/dsa-4408
security.gentoo.org/glsa/202005-06
nvd.nist.gov/vuln/detail/CVE-2019-6256
Show 22 moreShow less
github.com/advisories/GHSA-j293-2f59-6wr3
security-tracker.debian.org/tracker/CVE-2019-6256
ubuntu.com/security/CVE-2019-6256
ubuntu.com/security/notices/USN-4853-1
cve.org/CVERecord?id=CVE-2019-6256
ubuntu.com/security/CVE-2018-4013
ubuntu.com/security/CVE-2019-7314
ubuntu.com/security/CVE-2019-9215
lists.opensuse.org/archives/list/[email protected]/thread/4NOTQMR6AICFVIHO7JSMILX3ERHDS52U
bugzilla.suse.com/1114779
bugzilla.suse.com/1121892
suse.com/security/cve/CVE-2018-4013
suse.com/security/cve/CVE-2019-6256
suse.com/security/cve/CVE-2019-15232
suse.com/security/cve/CVE-2019-7314
suse.com/security/cve/CVE-2019-9215
suse.com/security/cve/CVE-2021-28899
suse.com/security/cve/CVE-2021-38380
suse.com/security/cve/CVE-2021-38381
suse.com/security/cve/CVE-2021-38382
suse.com/security/cve/CVE-2021-39282
suse.com/security/cve/CVE-2021-39283
Left out here: 36 versions. The JSON record has them.