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CVE-2021-1252

CVE-2021-1252 · Clam AntiVirus (ClamAV) Excel XLM Parser Denial of Service Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.

CVSS 7.5 · High · EPSS 2.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • clamav

    Versions
    • 0.103.0: Affected
    • 0.103.1: Affected

    No fix published

  • clamav Debian:12

    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-1

    Update to 0.103.2+dfsg-1

  • clamav Debian:13

    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-1

    Update to 0.103.2+dfsg-1

  • clamav Debian:14

    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-1

    Update to 0.103.2+dfsg-1

  • clamav Ubuntu:Pro:14.04:LTS

    Versions
    • 0.97.8+dfsg-1ubuntu4
    • 0.97.8+dfsg-1ubuntu5
    • 0.98.1+dfsg-1ubuntu4
    • 0.98.1+dfsg-1ubuntu5
    • 0.98.1+dfsg-2ubuntu2
    • 0.98.1+dfsg-4ubuntu1
    • 0.98.1+dfsg-4ubuntu1.1
    • 0.98.5+addedllvm-0ubuntu0.14.04.1
    • 0.98.6+dfsg-0ubuntu0.14.04.1
    • 0.98.7+dfsg-0ubuntu0.14.04.1
    • 0.99.2+addedllvm-0ubuntu0.14.04.1
    • 0.99.2+addedllvm-0ubuntu0.14.04.2
    • 0.99.3+addedllvm-0ubuntu0.14.04.1
    • 0.99.4+addedllvm-0ubuntu0.14.04.1
    • 0.100.1+dfsg-1ubuntu0.14.04.1
    • 0.100.1+dfsg-1ubuntu0.14.04.2
    • 0.100.1+dfsg-1ubuntu0.14.04.3
    • 0.100.1+dfsg-1ubuntu0.14.04.4
    • 0.100.2+dfsg-1ubuntu0.14.04.1
    • 0.100.2+dfsg-1ubuntu0.14.04.2
    • 0.100.3+dfsg-0ubuntu0.14.04.1
    • 0.100.3+dfsg-0ubuntu0.14.04.1+esm1
    • 0.101.4+dfsg-0ubuntu0.14.04.1+esm1
    • 0.102.1+dfsg-0ubuntu0.14.04.1+esm1
    • 0.102.2+dfsg-0ubuntu0.14.04.1+esm1
    • 0.102.3+dfsg-0ubuntu0.14.04.1+esm1
    • 0.102.4+dfsg-0ubuntu0.14.04.1+esm1
    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-0ubuntu0.14.04.1+esm1

    Update to 0.103.2+dfsg-0ubuntu0.14.04.1+esm1

  • clamav Ubuntu:16.04:LTS

    Versions
    • 0.98.7+dfsg-0ubuntu4
    • 0.98.7+dfsg-0ubuntu5
    • 0.99+dfsg-1ubuntu1
    • 0.99+dfsg-1ubuntu1.1
    • 0.99+dfsg-1ubuntu1.2
    • 0.99.2+dfsg-0ubuntu0.16.04.1
    • 0.99.2+dfsg-0ubuntu0.16.04.2
    • 0.99.2+dfsg-0ubuntu0.16.04.3
    • 0.99.3+addedllvm-0ubuntu0.16.04.1
    • 0.99.4+addedllvm-0ubuntu0.16.04.1
    • 0.100.1+dfsg-1ubuntu0.16.04.1
    • 0.100.1+dfsg-1ubuntu0.16.04.2
    • 0.100.1+dfsg-1ubuntu0.16.04.3
    • 0.100.2+dfsg-1ubuntu0.16.04.1
    • 0.100.3+dfsg-0ubuntu0.16.04.1
    • 0.101.4+dfsg-0ubuntu0.16.04.1
    • 0.102.1+dfsg-0ubuntu0.16.04.2
    • 0.102.2+dfsg-0ubuntu0.16.04.1
    • 0.102.3+dfsg-0ubuntu0.16.04.1
    • 0.102.4+dfsg-0ubuntu0.16.04.1
    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-0ubuntu0.16.04.1

    Update to 0.103.2+dfsg-0ubuntu0.16.04.1

  • clamav Ubuntu:18.04:LTS

    Versions
    • 0.99.2+dfsg-6ubuntu2
    • 0.99.3~beta1+dfsg-2ubuntu1
    • 0.99.3~beta1+dfsg-2ubuntu2
    • 0.99.3+addedllvm-0ubuntu1
    • 0.99.3+addedllvm-0ubuntu2
    • 0.99.4+addedllvm-0ubuntu1
    • 0.100.1+dfsg-1ubuntu0.18.04.1
    • 0.100.1+dfsg-1ubuntu0.18.04.2
    • 0.100.1+dfsg-1ubuntu0.18.04.3
    • 0.100.2+dfsg-1ubuntu0.18.04.1
    • 0.100.3+dfsg-0ubuntu0.18.04.1
    • 0.101.4+dfsg-0ubuntu0.18.04.1
    • 0.102.1+dfsg-0ubuntu0.18.04.2
    • 0.102.2+dfsg-0ubuntu0.18.04.1
    • 0.102.3+dfsg-0ubuntu0.18.04.1
    • 0.102.4+dfsg-0ubuntu0.18.04.1
    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-0ubuntu0.18.04.1

    Update to 0.103.2+dfsg-0ubuntu0.18.04.1

  • clamav Ubuntu:20.04:LTS

    Versions
    • 0.101.4+dfsg-1ubuntu1
    • 0.102.1+dfsg-1ubuntu1
    • 0.102.1+dfsg-2ubuntu1
    • 0.102.1+dfsg-2ubuntu2
    • 0.102.2+dfsg-1ubuntu1
    • 0.102.2+dfsg-2ubuntu1
    • 0.102.3+dfsg-0ubuntu0.20.04.1
    • 0.102.4+dfsg-0ubuntu0.20.04.1
    Affected ranges
    • ECOSYSTEM: < 0.103.2+dfsg-0ubuntu0.20.04.1

    Update to 0.103.2+dfsg-0ubuntu0.20.04.1

Original sources

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