CVE-2015-8325

Publication date 30 April 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openssh	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Fixed 1:6.9p1-2ubuntu0.2
	14.04 LTS trusty	Fixed 1:6.6p1-2ubuntu2.7
	12.04 LTS precise	Fixed 1:5.9p1-5ubuntu1.9

Notes

tyhicks

Ubuntu is not affected in the default configuration since UseLogin is disabled in sshd_config

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=85b

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H