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CVE-2026-48977

CVE-2026-48977 · OpenSlide: Arbitrary memory write with crafted Ventana BIF file

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

OpenSlide is a C library for reading whole slide image files. From 3.4.1 until 4.0.1, OpenSlide's parse_level0_xml() processing in src/openslide-vendor-ventana.c accepts nonpositive row or column tile counts from a crafted Ventana BIF file. The invalid counts produce attacker-controlled relative memory offsets and allow arbitrary values to be written at those offsets, affecting all supported platforms and configurations and resulting in a crash or potential arbitrary code execution. This issue is fixed in version 4.0.1.

CVSS 7.7 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • openslide

    Versions
    • >= 3.4.1, < 4.0.1: Affected

    No fix published

  • openslide Debian:12

    Versions
    • 3.4.1+dfsg-6
    Affected ranges
    • ECOSYSTEM: < 3.4.1+dfsg-6+deb12u1

    Update to 3.4.1+dfsg-6+deb12u1

  • openslide Debian:13

    Versions
    • 3.4.1+dfsg-7
    Affected ranges
    • ECOSYSTEM: < 3.4.1+dfsg-7+deb13u1

    Update to 3.4.1+dfsg-7+deb13u1

  • openslide Debian:14

    Versions
    • 3.4.1+dfsg-7
    • 3.4.1+dfsg-8
    Affected ranges
    • ECOSYSTEM: < 3.4.1+dfsg-9

    Update to 3.4.1+dfsg-9

  • openslide Ubuntu:16.04:LTS

    Versions
    • 3.4.0-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • openslide Ubuntu:18.04:LTS

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

    No fix published

  • openslide Ubuntu:20.04:LTS

    Versions
    • 3.4.1+dfsg-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • openslide Ubuntu:22.04:LTS

    Versions
    • 3.4.1+dfsg-5
    • 3.4.1+dfsg-5build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • openslide Ubuntu:24.04:LTS

    Versions
    • 3.4.1+dfsg-6build1
    • 3.4.1+dfsg-7
    • 3.4.1+dfsg-7build1
    • 3.4.1+dfsg-7build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • openslide Ubuntu:25.10

    Versions
    • 3.4.1+dfsg-7build2
    • 3.4.1+dfsg-7build3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • openslide Ubuntu:26.10

    Versions
    • 3.4.1+dfsg-7build4
    • 3.4.1+dfsg-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • openslide Ubuntu:26.04:LTS

    Versions
    • 3.4.1+dfsg-7build3
    • 3.4.1+dfsg-7build4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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