What’s Vulnerable › Vulnerabilities

CVE-2012-1699

• Severity: low (CVSS 3.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-12-21 · updated 2026-06-16
• Weakness: CWE-119

Description

The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6.6 and XFree86 before 3.3.3 calls the SendErrToClient function with a mask value instead of a pointer, which allows local users to cause a denial of service (memory corruption and crash) or obtain potentially sensitive information from memory via a SetEventMask request that triggers an invalid pointer dereference.

Affected products

• X.Org X11: 6.0, 6.1, 6.3, 6.4, 6.5.1, 6.6
• Xfree86: through 3.3.2

References

• http://invisible-island.net/ansification/ansify-xfs-cve.html
• http://lists.freedesktop.org/archives/xorg-announce/2012-July/002040.html
• http://marc.info/?l=bugtraq&m=135765511704334&w=2
• http://twitter.com/bsdaemon/status/228958599790071809
• https://blogs.oracle.com/sunsecurity/entry/cve_2012_1699_denial_of
• https://bugzilla.redhat.com/show_bug.cgi?id=842841
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19369
• http://invisible-island.net/ansification/ansify-xfs-cve.html
• http://lists.freedesktop.org/archives/xorg-announce/2012-July/002040.html
• http://marc.info/?l=bugtraq&m=135765511704334&w=2
• http://twitter.com/bsdaemon/status/228958599790071809
• https://blogs.oracle.com/sunsecurity/entry/cve_2012_1699_denial_of

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