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OpenAdvisories
Medium · 5.3 CVE-2025-7700 EUVD-2025-38295GHSA-p7g8-g57p-r8qx

Ffmpeg: null pointer dereference in ffmpeg als decoder (libavcodec/alsdec.c)

Published Nov 7, 2025 · Updated May 6, 2026 · Assigned by redhat

Description

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.

Affected products

VendorProductAffectedFixed
— ffmpeg < 8.0 8.0

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 ffmpeg 7:7.1.2-1 —
Debian 13 ffmpeg 7:7.1.2-0+deb13u1 DSA-6007-1
Debian 12 ffmpeg 7:5.1.7-0+deb12u1 DSA-5985-1
Debian 11 ffmpeg 7:4.3.9-0+deb11u2 DLA-4440-1
ReleasePackageFixed inAdvisory
Ubuntu 25.10 ffmpeg 7:7.1.1-1ubuntu4.1 USN-7871-1
Ubuntu 22.04 LTS ffmpeg No fix yet —
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS ffmpeg 7:6.1.1-3ubuntu5+esm6 USN-7830-1
Ubuntu Pro 22.04 LTS ffmpeg 7:4.4.2-0ubuntu0.22.04.1+esm10 USN-7830-1
Ubuntu Pro 20.04 LTS ffmpeg 7:4.2.7-0ubuntu0.1+esm11 USN-7830-1
Ubuntu Pro 18.04 LTS ffmpeg 7:3.4.11-0ubuntu0.1+esm11 USN-7830-1
Ubuntu Pro 14.04 LTS libav No fix yet —
ReleasePackageFixed inAdvisory
SLES 15 SP7 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:02990-1
SLES 15 SP7 ffmpeg-4 4.4.6-150600.13.30.1 SUSE-SU-2025:3715-1, SUSE-SU-2025:03162-1
SLES 15 SP6 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:02990-1
SLES 15 SP6 ffmpeg-4 4.4.6-150600.13.30.1 SUSE-SU-2025:3715-1, SUSE-SU-2025:03162-1
SLES 15 SP5 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLES 15 SP4 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLES 15 SP4 ffmpeg-4 4.4.6-150400.3.52.1 SUSE-SU-2025:02972-1
SLES 15 SP3 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 ffmpeg-7 7.1.2-160000.1.1 SUSE-SU-2026:20932-1
SLES for SAP 15 SP5 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLES for SAP 15 SP4 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLES for SAP 15 SP4 ffmpeg-4 4.4.6-150400.3.52.1 SUSE-SU-2025:02972-1
SLES for SAP 15 SP3 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLES 16.0 ffmpeg-7 7.1.2-160000.1.1 SUSE-SU-2026:20932-1
SLE HPC 15 SP5 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLE HPC 15 SP4 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SLE HPC 15 SP4 ffmpeg-4 4.4.6-150400.3.52.1 SUSE-SU-2025:02972-1
SLE HPC 15 SP3 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
SUSE Enterprise Storage 7.1 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:2990-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed ffmpeg-4 4.4.6-5.1 openSUSE-SU-2025:15427-1
openSUSE Tumbleweed ffmpeg-7 7.1.1-8.1 openSUSE-SU-2025:15396-1
openSUSE Leap 16.0 ffmpeg-7 7.1.2-160000.1.1 openSUSE-SU-2026:20420-1
openSUSE Leap 15.6 ffmpeg 3.4.2-150200.11.67.1 SUSE-SU-2025:02990-1
openSUSE Leap 15.6 ffmpeg-4 4.4.6-150600.13.30.1 SUSE-SU-2025:3715-1, SUSE-SU-2025:03162-1

Advisories 15

References