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Oracle Linux: CVE-2015-8325: ELSA-2016-2588: openssh security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2015-8325: ELSA-2016-2588: openssh security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
04/13/2016
Created
07/25/2018
Added
11/09/2016
Modified
12/06/2024

Description

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. It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root.

Solution(s)

  • oracle-linux-upgrade-openssh
  • oracle-linux-upgrade-openssh-askpass
  • oracle-linux-upgrade-openssh-clients
  • oracle-linux-upgrade-openssh-keycat
  • oracle-linux-upgrade-openssh-ldap
  • oracle-linux-upgrade-openssh-server
  • oracle-linux-upgrade-openssh-server-sysvinit
  • oracle-linux-upgrade-pam-ssh-agent-auth

References

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