CVE-2012-1148

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-07-03 · updated 2026-06-16
Weakness: CWE-399

Description

Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities.

Affected products

macOS: through 10.11.1
libexpat project libexpat: through 2.0.1; 1.95.1, 1.95.2, 1.95.4, 1.95.5, 1.95.6, 1.95.7 (+2)

References

http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmlparse.c?r1=1.166&r2=1.167
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
http://rhn.redhat.com/errata/RHSA-2012-0731.html
http://rhn.redhat.com/errata/RHSA-2016-0062.html
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://secunia.com/advisories/49504
http://secunia.com/advisories/51024
http://secunia.com/advisories/51040
http://sourceforge.net/projects/expat/files/expat/2.1.0/
http://sourceforge.net/tracker/?func=detail&atid=110127&aid=2958794&group_id=10127
http://www.debian.org/security/2012/dsa-2525
http://www.mandriva.com/security/advisories?name=MDVSA-2012:041

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