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CVE-2026-111127

CVE-2026-111127 · catdoc through 0.95 Out-of-Bounds Read via xls2csv copy_unicode_string

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

catdoc through 0.95 contains an out-of-bounds read vulnerability in copy_unicode_string() in src/xlsparse.c that allows attackers to read past buffers via an unchecked string character count. Attackers can supply a crafted .xls file declaring 0xFFFF two-byte characters in LABEL, STRING, or SST records to disclose adjacent memory through xls2csv output or crash the process.

CVSS 6.9 · Medium · EPSS 0.1%

Published
Updated

Stack: system

Affected products and versions

  • catdoc

    Versions
    • ≥ 0, ≤ 0.95: Affected (custom)

    No fix published

  • catdoc Debian:12

    Versions
    • 1:0.95-5
    • 1:0.95-6
    • 1:0.95-6~deb12u1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Debian:13

    Versions
    • 1:0.95-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Debian:14

    Versions
    • 1:0.95-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:Pro:16.04:LTS

    Versions
    • 0.94.4-1.1
    • 1:0.94.3~git20151007.fd634c2+dfsg-2
    • 1:0.94.3~git20151007.fd634c2+dfsg-3
    • 1:0.94.3~git20160113.dbc9ec6+dfsg-1
    • 1:0.94.3~git20160113.dbc9ec6+dfsg-1+deb9u1build0.16.04.1
    • 1:0.94.3~git20160113.dbc9ec6+dfsg-1+deb9u1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:Pro:18.04:LTS

    Versions
    • 1:0.95-3
    • 1:0.95-4.1
    • 1:0.95-4.1ubuntu0.18.04.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:Pro:20.04:LTS

    Versions
    • 1:0.95-4.1
    • 1:0.95-4.1ubuntu0.20.04.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:Pro:22.04:LTS

    Versions
    • 1:0.95-4.1
    • 1:0.95-4.2
    • 1:0.95-5
    • 1:0.95-5ubuntu0.22.04.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:Pro:24.04:LTS

    Versions
    • 1:0.95-5
    • 1:0.95-5build1
    • 1:0.95-5ubuntu0.24.04.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:26.10

    Versions
    • 1:0.95-6build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • catdoc Ubuntu:26.04:LTS

    Versions
    • 1:0.95-6
    • 1:0.95-6build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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