CVE-2011-1027

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-03-20 · updated 2026-06-16
Weakness: CWE-193

Description

Off-by-one error in the convert_query_hexchar function in html.c in cgit.cgi in cgit before 0.8.3.5 allows remote attackers to cause a denial of service (infinite loop) via a string composed of a % (percent) character followed by invalid hex characters, as demonstrated by a %gg sequence.

Affected products

Fedoraproject Fedora: 13, 14, 15
Lars Hjemli Cgit: through 0.8.3.4; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+16)

References

http://article.gmane.org/gmane.comp.version-control.git/168493
http://hjemli.net/git/cgit/commit/?h=stable&id=fc384b16fb9787380746000d3cea2d53fccc548e
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055896.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055898.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055966.html
http://openwall.com/lists/oss-security/2011/03/07/3
http://secunia.com/advisories/43633
http://secunia.com/advisories/43788
http://www.osvdb.org/71005
http://www.securityfocus.com/bid/46756
http://www.vupen.com/english/advisories/2011/0667
https://bugzilla.redhat.com/show_bug.cgi?id=680905

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