CVE-2012-3518

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-119

Description

The networkstatus_parse_vote_from_string function in routerparse.c in Tor before 0.2.2.38 does not properly handle an invalid flavor name, which allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted (1) vote document or (2) consensus document.

Affected products

Tor: through 0.2.2.37

References

http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html
http://openwall.com/lists/oss-security/2012/08/21/6
http://secunia.com/advisories/50583
http://security.gentoo.org/glsa/glsa-201301-03.xml
https://gitweb.torproject.org/tor.git/commit/55f635745afacefffdaafc72cc176ca7ab817546
https://gitweb.torproject.org/tor.git/commit/57e35ad3d91724882c345ac709666a551a977f0f
https://lists.torproject.org/pipermail/tor-announce/2012-August/000086.html
https://trac.torproject.org/projects/tor/ticket/6530
http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html
http://openwall.com/lists/oss-security/2012/08/21/6
http://secunia.com/advisories/50583
http://security.gentoo.org/glsa/glsa-201301-03.xml

Get alerted when CVE-2012-3518 or the next vulnerability affects your stack