CVE-2013-7039

Severity: medium (CVSS 5.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-12-13 · updated 2026-06-17
Weakness: CWE-119

Description

Stack-based buffer overflow in the MHD_digest_auth_check function in libmicrohttpd before 0.9.32, when MHD_OPTION_CONNECTION_MEMORY_LIMIT is set to a large value, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long URI in an authentication header.

Affected products

GNU Libmicrohttpd: through 0.9.31; 0.9.16, 0.9.17, 0.9.18, 0.9.19, 0.9.20, 0.9.21 (+9)

References

http://secunia.com/advisories/55903
http://security.gentoo.org/glsa/glsa-201402-01.xml
http://www.openwall.com/lists/oss-security/2013/12/09/11
http://www.securityfocus.com/bid/64138
https://bugs.gentoo.org/show_bug.cgi?id=493450
https://bugzilla.redhat.com/show_bug.cgi?id=1039390
https://gnunet.org/svn/libmicrohttpd/ChangeLog
http://secunia.com/advisories/55903
http://security.gentoo.org/glsa/glsa-201402-01.xml
http://www.openwall.com/lists/oss-security/2013/12/09/11
http://www.securityfocus.com/bid/64138
https://bugs.gentoo.org/show_bug.cgi?id=493450

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