CVE-2013-4396

Severity: medium (CVSS 6.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-10-10 · updated 2026-06-16
Weakness: CWE-399

Description

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

Affected products

X.Org X11: 6.0, 6.1, 6.3, 6.4, 6.5.1, 6.6 (+16)

References

http://lists.opensuse.org/opensuse-updates/2013-10/msg00056.html
http://lists.opensuse.org/opensuse-updates/2013-10/msg00060.html
http://lists.x.org/archives/xorg-announce/2013-October/002332.html
http://openwall.com/lists/oss-security/2013/10/08/6
http://rhn.redhat.com/errata/RHSA-2013-1426.html
http://www.debian.org/security/2013/dsa-2784
http://www.securityfocus.com/bid/62892
http://www.ubuntu.com/usn/USN-1990-1
https://bugzilla.redhat.com/show_bug.cgi?id=1014561
http://lists.opensuse.org/opensuse-updates/2013-10/msg00056.html
http://lists.opensuse.org/opensuse-updates/2013-10/msg00060.html
http://lists.x.org/archives/xorg-announce/2013-October/002332.html

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