CVE-2012-3501

Severity: medium (CVSS 5.0 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: yes
Published: 2012-08-25 · updated 2026-06-16
Weakness: CWE-119

Description

The squidclamav_check_preview_handler function in squidclamav.c in SquidClamav 5.x before 5.8 and 6.x before 6.7 passes an unescaped URL to a system command call, which allows remote attackers to cause a denial of service (daemon crash) via a URL with certain characters, as demonstrated using %0D or %0A.

Affected products

Darold Squidclamav: 5.0, 5.1, 5.2, 5.3, 5.4, 5.5 (+9)

References

http://freecode.com/projects/squidclamav/releases/346722
http://secunia.com/advisories/49057
http://squidclamav.darold.net/news.html
http://www.openwall.com/lists/oss-security/2012/08/16/2
http://www.openwall.com/lists/oss-security/2012/08/16/4
http://www.osvdb.org/84138
http://www.securityfocus.com/bid/54663
https://bugs.gentoo.org/show_bug.cgi?id=428778
https://github.com/darold/squidclamav/commit/80f74451f628264d1d9a1f1c0bbcebc932ba5e00
http://freecode.com/projects/squidclamav/releases/346722
http://secunia.com/advisories/49057
http://squidclamav.darold.net/news.html

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