CVE-2012-3501

medium

Published 2012-08-25 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.0

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

Vendor	Product	Versions
darold	squidclamav	`5.0`
darold	squidclamav	`5.1`
darold	squidclamav	`5.2`
darold	squidclamav	`5.3`
darold	squidclamav	`5.4`
darold	squidclamav	`5.5`
darold	squidclamav	`5.6`
darold	squidclamav	`5.7`
darold	squidclamav	`6.0`
darold	squidclamav	`6.1`
darold	squidclamav	`6.2`
darold	squidclamav	`6.3`
darold	squidclamav	`6.4`
darold	squidclamav	`6.5`
darold	squidclamav	`6.6`

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.