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CVE-2021-3404

CVE-2021-3404

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

In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.

CVSS 7.8 · High · EPSS 1.9% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • ytnef

    Versions
    • All versions: Affected

    No fix published

  • libytnef Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.9.3-3

    Update to 1.9.3-3

  • libytnef Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.9.3-3

    Update to 1.9.3-3

  • libytnef Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.9.3-3

    Update to 1.9.3-3

  • libytnef Ubuntu:16.04:LTS

    Versions
    • 1.5-6
    • 1.5-9
    • 1.5-9ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:18.04:LTS

    Versions
    • 1.9.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:20.04:LTS

    Versions
    • 1.9.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:22.04:LTS

    Versions
    • 1.9.3-3
    • 2.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:24.04:LTS

    Versions
    • 2.0-1
    • 2.1.2-1
    • 2.1.2-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:25.10

    Versions
    • 2.1.2-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:26.10

    Versions
    • 2.1.2-1build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libytnef Ubuntu:26.04:LTS

    Versions
    • 2.1.2-1build1
    • 2.1.2-1build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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