CVE-2012-3517

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-08-26 · updated 2026-06-16
Weakness: CWE-399

Description

Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via vectors related to failed DNS requests.

Affected products

Tor: through 0.2.2.37

References

http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html
http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html
http://openwall.com/lists/oss-security/2012/08/21/6
http://security.gentoo.org/glsa/glsa-201301-03.xml
https://bugzilla.redhat.com/show_bug.cgi?id=849949
https://gitweb.torproject.org/tor.git/commit/62637fa22405278758febb1743da9af562524d4c
https://lists.torproject.org/pipermail/tor-announce/2012-August/000086.html
https://trac.torproject.org/projects/tor/ticket/6480
http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html
http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html
http://openwall.com/lists/oss-security/2012/08/21/6
http://security.gentoo.org/glsa/glsa-201301-03.xml

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