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Fencer Intel
medium 6.2

CVE-2012-5536 json

A certain Red Hat build of the pam_ssh_agent_auth module on Red Hat Enterprise Linux (RHEL) 6 and Fedora Rawhide calls the glibc error func…

published 2013-02-22 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5428

cvss
6.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

A certain Red Hat build of the pam_ssh_agent_auth module on Red Hat Enterprise Linux (RHEL) 6 and Fedora Rawhide calls the glibc error function instead of the error function in the OpenSSH codebase, which allows local users to obtain sensitive information from process memory or possibly gain privileges via crafted use of an application that relies on this module, as demonstrated by su and sudo.

Patch / fix

  • openssh RHEL 6 5.3p1-84.1.el6
  • openssh-ldap RHEL 6 5.3p1-84.1.el6
  • openssh-server RHEL 6 5.3p1-84.1.el6
  • openssh-askpass RHEL 6 5.3p1-84.1.el6
  • openssh-clients RHEL 6 5.3p1-84.1.el6
  • pam_ssh_agent_auth RHEL 6 0.9.3-84.1.el6

red hat advisories RHSA-2013:0519

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-5536 updated cvss 6.2

pam_ssh_agent_auth: symbol crash leading to glibc error() called incorrectly

  • Red Hat Enterprise Linux Desktop (v. 6) openssh 5.3p1-84.1.el6, openssh-server 5.3p1-84.1.el6, openssh-askpass 5.3p1-84.1.el6, openssh-clients 5.3p1-84.1.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) openssh 5.3p1-84.1.el6, openssh-ldap 5.3p1-84.1.el6, pam_ssh_agent_auth 0.9.3-84.1.el6 Red Hat Enterprise Linux HPC Node (v. 6) openssh 5.3p1-84.1.el6, openssh-server 5.3p1-84.1.el6, openssh-clients 5.3p1-84.1.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) openssh 5.3p1-84.1.el6, openssh-ldap 5.3p1-84.1.el6, openssh-askpass 5.3p1-84.1.el6, pam_ssh_agent_auth 0.9.3-84.1.el6 Red Hat Enterprise Linux Server (v. 6) openssh 5.3p1-84.1.el6, openssh-server 5.3p1-84.1.el6, openssh-askpass 5.3p1-84.1.el6, openssh-clients 5.3p1-84.1.el6 Red Hat Enterprise Linux Server Optional (v. 6) openssh 5.3p1-84.1.el6, openssh-ldap 5.3p1-84.1.el6, pam_ssh_agent_auth 0.9.3-84.1.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) openssh 5.3p1-84.1.el6, openssh-server 5.3p1-84.1.el6, openssh-askpass 5.3p1-84.1.el6, openssh-clients 5.3p1-84.1.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) openssh 5.3p1-84.1.el6, openssh-ldap 5.3p1-84.1.el6, pam_ssh_agent_auth 0.9.3-84.1.el6
    fixed: vendor fix RHSA-2013:0519
  • Red Hat Enterprise Linux 5 openssh
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • pkgs.fedoraproject.org http://pkgs.fedoraproject.org/cgit/openssh.git/commit/?id=4f4687ce8045418f678c323bb22c837f35d7b9fa referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.2 AV:L/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.