Numeric Errors Affecting clamav package, versions <0.97.2+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
3.38% (88th percentile)

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  • Snyk IDSNYK-ECHOLATEST-CLAMAV-18600035
  • published9 Aug 2026
  • disclosed5 Aug 2011

Introduced: 5 Aug 2011

CVE-2011-2721  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade Echo:latest clamav to version 0.97.2+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream clamav package and not the clamav package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.

CVSS Base Scores

version 3.1