What’s Vulnerable › Vulnerabilities

CVE-2009-3826

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-10-28 · updated 2026-06-16
• Weakness: CWE-119

Description

Multiple buffer overflows in squidGuard 1.4 allow remote attackers to bypass intended URL blocking via a long URL, related to (1) the relationship between a certain buffer size in squidGuard and a certain buffer size in Squid and (2) a redirect URL that contains information about the originally requested URL.

Affected products

• Squidguard: 1.4

References

• http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
• http://secunia.com/advisories/37107
• http://secunia.com/advisories/39679
• http://securitytracker.com/id?1023079
• http://www.debian.org/security/2010/dsa-2040
• http://www.osvdb.org/59164
• http://www.securityfocus.com/archive/1/507440/100/0/threaded
• http://www.securityfocus.com/bid/36800
• http://www.squidguard.org/Downloads/Patches/1.4/Readme.Patch-20091019
• http://www.vupen.com/english/advisories/2009/3013
• http://www.vupen.com/english/advisories/2010/1043
• https://exchange.xforce.ibmcloud.com/vulnerabilities/53922

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