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CVE-2025-7700

CVE-2025-7700 · Ffmpeg: null pointer dereference in ffmpeg als decoder (libavcodec/alsdec.c)

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

A flaw was found in FFmpeg’s ALS audio decoder, where it does not properly check for memory allocation failures. This can cause the application to crash when processing certain malformed audio files. While it does not lead to data theft or system control, it can be used to disrupt services and cause a denial of service.

CVSS 5.3 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • ffmpeg Debian:12

    Versions
    • 7:5.1.3-1
    • 7:5.1.3-2
    • 7:5.1.4-0+deb12u1
    • 7:5.1.5-0+deb12u1
    • 7:5.1.6-0+deb12u1
    Affected ranges
    • ECOSYSTEM: < 7:5.1.7-0+deb12u1

    Update to 7:5.1.7-0+deb12u1

  • ffmpeg Debian:13

    Versions
    • 7:7.1.1-1
    Affected ranges
    • ECOSYSTEM: < 7:7.1.2-0+deb13u1

    Update to 7:7.1.2-0+deb13u1

  • ffmpeg Debian:14

    Versions
    • 7:7.1.1-1
    Affected ranges
    • ECOSYSTEM: < 7:7.1.2-1

    Update to 7:7.1.2-1

  • libav Ubuntu:Pro:14.04:LTS

    Versions
    • 6:0.8.7-1ubuntu2
    • 6:9.10-1ubuntu1
    • 6:9.10-1ubuntu2
    • 6:9.10-1ubuntu5
    • 6:9.10-1ubuntu6
    • 6:9.10-1ubuntu7
    • 6:9.11-2ubuntu1
    • 6:9.11-2ubuntu2
    • 6:9.13-0ubuntu0.14.04.1
    • 6:9.14-0ubuntu0.14.04.1
    • 6:9.16-0ubuntu0.14.04.1
    • 6:9.18-0ubuntu0.14.04.1
    • 6:9.20-0ubuntu0.14.04.1
    • 6:9.20-0ubuntu0.14.04.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Ubuntu:Pro:18.04:LTS

    Versions
    • 7:3.3.4-2
    • 7:3.3.4-2build3
    • 7:3.4-2ubuntu2
    • 7:3.4-4
    • 7:3.4-4build1
    • 7:3.4.1-1
    • 7:3.4.1-1build1
    • 7:3.4.2-1
    • 7:3.4.2-1build1
    • 7:3.4.2-2
    • 7:3.4.4-0ubuntu0.18.04.1
    • 7:3.4.6-0ubuntu0.18.04.1
    • 7:3.4.8-0ubuntu0.2
    • 7:3.4.11-0ubuntu0.1
    • 7:3.4.11-0ubuntu0.1+esm1
    • 7:3.4.11-0ubuntu0.1+esm2
    • 7:3.4.11-0ubuntu0.1+esm3
    • 7:3.4.11-0ubuntu0.1+esm4
    • 7:3.4.11-0ubuntu0.1+esm5
    • 7:3.4.11-0ubuntu0.1+esm6
    • 7:3.4.11-0ubuntu0.1+esm7
    • 7:3.4.11-0ubuntu0.1+esm8
    • 7:3.4.11-0ubuntu0.1+esm9
    • 7:3.4.11-0ubuntu0.1+esm10
    • 7:3.4.11-0ubuntu0.1+esm11
    • 7:3.4.11-0ubuntu0.1+esm12
    • 7:3.4.11-0ubuntu0.1+esm13
    • 7:3.4.11-0ubuntu0.1+esm14
    • 7:3.4.11-0ubuntu0.1+esm15
    • 7:3.4.11-0ubuntu0.1+esm16
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Ubuntu:Pro:20.04:LTS

    Versions
    • 7:4.1.4-1build2
    • 7:4.2.1-2
    • 7:4.2.1-2ubuntu1
    • 7:4.2.2-1build1
    • 7:4.2.2-1ubuntu1
    • 7:4.2.4-1ubuntu0.1
    • 7:4.2.4-1ubuntu0.1+esm1
    • 7:4.2.7-0ubuntu0.1
    • 7:4.2.7-0ubuntu0.1+esm1
    • 7:4.2.7-0ubuntu0.1+esm2
    • 7:4.2.7-0ubuntu0.1+esm3
    • 7:4.2.7-0ubuntu0.1+esm4
    • 7:4.2.7-0ubuntu0.1+esm5
    • 7:4.2.7-0ubuntu0.1+esm6
    • 7:4.2.7-0ubuntu0.1+esm7
    • 7:4.2.7-0ubuntu0.1+esm8
    • 7:4.2.7-0ubuntu0.1+esm9
    • 7:4.2.7-0ubuntu0.1+esm10
    • 7:4.2.7-0ubuntu0.1+esm11
    • 7:4.2.7-0ubuntu0.1+esm12
    • 7:4.2.7-0ubuntu0.1+esm13
    • 7:4.2.7-0ubuntu0.1+esm14
    • 7:4.2.7-0ubuntu0.1+esm15
    • 7:4.2.7-0ubuntu0.1+esm16
    • 7:4.2.7-0ubuntu0.1+esm17
    • 7:4.2.7-0ubuntu0.1+esm18
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Ubuntu:22.04:LTS

    Versions
    • 7:4.4-6ubuntu5
    • 7:4.4.1-2ubuntu1
    • 7:4.4.1-3ubuntu1
    • 7:4.4.1-3ubuntu2
    • 7:4.4.1-3ubuntu3
    • 7:4.4.1-3ubuntu5
    • 7:4.4.2-0ubuntu0.22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Ubuntu:Pro:24.04:LTS

    Versions
    • 7:6.0-6ubuntu1
    • 7:6.0-9ubuntu1
    • 7:6.1-2ubuntu1
    • 7:6.1-3ubuntu1
    • 7:6.1-4ubuntu1
    • 7:6.1-5ubuntu1
    • 7:6.1.1-1ubuntu1
    • 7:6.1.1-3ubuntu1
    • 7:6.1.1-3ubuntu5
    • 7:6.1.1-3ubuntu5+esm1
    • 7:6.1.1-3ubuntu5+esm2
    • 7:6.1.1-3ubuntu5+esm3
    • 7:6.1.1-3ubuntu5+esm4
    • 7:6.1.1-3ubuntu5+esm5
    Affected ranges
    • ECOSYSTEM: < 7:6.1.1-3ubuntu5+esm6

    Update to 7:6.1.1-3ubuntu5+esm6

  • ffmpeg Ubuntu:25.10

    Versions
    • 7:7.1.1-1ubuntu1
    • 7:7.1.1-1ubuntu2
    • 7:7.1.1-1ubuntu3
    • 7:7.1.1-1ubuntu4
    Affected ranges
    • ECOSYSTEM: < 7:7.1.1-1ubuntu4.1

    Update to 7:7.1.1-1ubuntu4.1

Original sources

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