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CVE-2026-111145

CVE-2026-111145 · ytnef through 2.1.2 Heap Out-of-Bounds Read via DecompressRTF

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

ytnef through 2.1.2 contains a heap out-of-bounds read vulnerability in DecompressRTF() in lib/ytnef.c that never validates uncompressedSize for uncompressed RTF streams. Attackers can supply a crafted winmail.dat TNEF attachment with a malicious PT_BINARY MAPI property to crash ytnefprint or libytnef callers and leak adjacent heap memory.

CVSS 6.9 · Medium · EPSS 0.1%

Published
Updated

Stack: system

Affected products and versions

  • ytnef

    Versions
    • ≥ 0, ≤ 2.1.2: Affected (semver)

    No fix published

  • libytnef Debian:12

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

    No fix published

  • libytnef Debian:13

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

    No fix published

  • libytnef Debian:14

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

    No fix published

  • 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: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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