CVE-2016-1907

Publication date 19 January 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openssh	16.04 LTS xenial	Not affected
	15.10 wily	Fixed 1:6.9p1-2ubuntu0.2
	15.04 vivid	Not affected
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not affected

Notes

mdeslaur

introduced in 6.8

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
openssh	Upstream: ?id=2fe

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-2966-1
OpenSSH vulnerabilities
9 May 2016