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CVE-2016-1907

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to...

5.3 MediumFix available

CVE-2016-1907 is a medium vulnerability (CVSS 5.3) in Openbsd Openssh, published January 19, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 14.3%, the 96th percentile. Fixed in openssh 6.8_p1-r10.

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

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
None
Integrity
None
Availability
Low

Exploit likelihood

14.3%Up 12.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.3

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
CVE-2016-1907
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
CVE-2016-1907
Updated
2026-11-02
EUVDEUVD-2016-2998 No score

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
EUVD-2016-2998
Updated
2026-11-03
GitHub AdvisoriesGHSA-3xwc-hv27-5fhw 5.3

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to...

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
GHSA-3xwc-hv27-5fhw
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-119
Updated
2026-11-02
OSVALPINE-CVE-2016-1907 5.3

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
ALPINE-CVE-2016-1907
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSV 5.3

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
CVE-2016-1907
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVDEBIAN-CVE-2016-1907 5.3

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
DEBIAN-CVE-2016-1907
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2016-1907 5.3

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Record
UBUNTU-CVE-2016-1907
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVUSN-2966-1 No score

openssh vulnerabilities

Shayan Sadigh discovered that OpenSSH incorrectly handled environment files when the UseLogin feature is enabled. A local attacker could use this issue to gain privileges. (CVE-2015-8325)

Ben Hawkes discovered that OpenSSH incorrectly handled certain network traffic. A remote attacker could possibly use this issue to cause OpenSSH to crash, resulting in a denial of service. This issue only applied to Ubuntu 15.10. (CVE-2016-1907)

Thomas Hoger discovered that OpenSSH incorrectly handled untrusted X11 forwarding when the SECURITY extension is disabled. A connection configured as being untrusted could get switched to trusted in certain scenarios, contrary to expectations. (CVE-2016-1908)

It was discovered that OpenSSH incorrectly handled certain X11 forwarding data. A remote authenticated attacker could possibly use this issue to bypass certain intended command restrictions. (CVE-2016-3115)

Record
USN-2966-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openssh
Alpine:v3.2
before 6.8_p1-r10
6.8_p1-r10
openssh
Debian:12
before 1:7.1p2-1
1:7.1p2-1
openssh
Debian:13
before 1:7.1p2-1
1:7.1p2-1
openssh
Debian:14
before 1:7.1p2-1
1:7.1p2-1
openssh
Ubuntu:14.04:LTS
before 1:6.6p1-2ubuntu2.7, plus listed versions
1:6.2p2-61:6.2p2-6ubuntu11:6.4p1-11:6.4p1-21:6.5p1-1
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1:6.5p1-21:6.5p1-31:6.5p1-41:6.5p1-61:6.6p1-11:6.6p1-21:6.6p1-2ubuntu11:6.6p1-2ubuntu21:6.6p1-2ubuntu2.21:6.6p1-2ubuntu2.31:6.6p1-2ubuntu2.41:6.6p1-2ubuntu2.6
1:6.6p1-2ubuntu2.7

History

History
WhenChangedSources
2026-11-03affected
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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