CVE-2012-5536: A certain Red Hat build of the pam_ssh_agent_auth module on Red Hat Enterprise Linux (RHEL) 6 and Fedora Rawhi

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MEDIUM 6.2WATCHLISTMITIGATEMITIGATE

CVE-2012-5536 is a medium-severity flaw (CVSS 6.2) affecting fedora release rawhide, enterprise linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.2 (Medium)
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-20
Published	2013-02-22
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: fedora project · redhat

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-02-22 00:55 UTCPublished CVE record published
2026-06-16 23:46 UTCUpdated Record last modified

fedora project fedora release rawhide MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux MITIGATE

Affected: 6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-5536?

fedora release rawhide: mitigate or apply the listed mitigation; enterprise linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-5536 being exploited?

CVE-2012-5536 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-5536 affect?

CVE-2012-5536 affects fedora release rawhide, enterprise linux. Severity is medium (CVSS 6.2). 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 sensit

How urgent is CVE-2012-5536?

Priority 41/100. Public exploit reference; On your watchlist

Software pages

OpenSSH vulnerabilities · Red Hat Enterprise Linux vulnerabilities · Sudo vulnerabilities · glibc vulnerabilities

References

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