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CVE-2017-13720

CVE-2017-13720

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

In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

CVSS 7.1 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • libxfont Debian:12

    Affected ranges
    • ECOSYSTEM: < 1:2.0.1-4

    Update to 1:2.0.1-4

  • libxfont Debian:13

    Affected ranges
    • ECOSYSTEM: < 1:2.0.1-4

    Update to 1:2.0.1-4

  • libxfont Debian:14

    Affected ranges
    • ECOSYSTEM: < 1:2.0.1-4

    Update to 1:2.0.1-4

  • libxfont Ubuntu:14.04:LTS

    Versions
    • 1:1.4.6-1
    • 1:1.4.6-1ubuntu1
    • 1:1.4.7-1
    • 1:1.4.7-1ubuntu0.1
    • 1:1.4.7-1ubuntu0.2
    Affected ranges
    • ECOSYSTEM: < 1:1.4.7-1ubuntu0.3

    Update to 1:1.4.7-1ubuntu0.3

  • libxfont Ubuntu:16.04:LTS

    Versions
    • 1:1.5.1-1
    • 1:1.5.1-1ubuntu0.16.04.1
    • 1:1.5.1-1ubuntu0.16.04.2
    Affected ranges
    • ECOSYSTEM: < 1:1.5.1-1ubuntu0.16.04.3

    Update to 1:1.5.1-1ubuntu0.16.04.3

  • libxfont2 Ubuntu:16.04:LTS

    Versions
    • 1:2.0.1-3~ubuntu16.04.1
    Affected ranges
    • ECOSYSTEM: < 1:2.0.1-3~ubuntu16.04.2

    Update to 1:2.0.1-3~ubuntu16.04.2

Original sources

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