Description
A flaw was found in GStreamer's gst-plugins-bad package. When processing a specially crafted H.264 video file containing malformed MVC or SVC extension slice NAL units, a 1-byte heap out-of-bounds read can occur during parsing. This happens when the parser attempts to check slice boundary information without first verifying that the NAL unit contains enough data beyond the extension header. An attacker could exploit this by tricking a user into opening a malicious H.264 video file, potentially causing the application to crash or leak a single byte of heap memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gst-plugins-bad1.0 | 1.28.5-1 | — |
| Debian 13 | gst-plugins-bad1.0 | 1.26.2-3+deb13u3 | — |
| Debian 12 | gst-plugins-bad1.0 | 1.22.0-4+deb12u8 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu 26.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu 25.10 | gst-plugins-bad1.0 | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu Pro 22.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gst-plugins-bad1.0 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 | SUSE-SU-2026:3058-1 |
| SLES 15 SP6 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 | SUSE-SU-2026:3058-1 |
| SLES 15 SP5 | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 | SUSE-SU-2026:3125-1 |
| SLES 15 SP4 | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 | SUSE-SU-2026:3133-1 |
| SLES 12 SP5 | gstreamer-plugins-bad | 1.8.3-18.21.1 | SUSE-SU-2026:3299-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | gstreamer-plugins-bad | 1.26.7-160000.3.1 | SUSE-SU-2026:22817-1 |
| SLES for SAP 15 SP6 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 | SUSE-SU-2026:3058-1 |
| SLES for SAP 15 SP5 | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 | SUSE-SU-2026:3125-1 |
| SLES for SAP 15 SP4 | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 | SUSE-SU-2026:3133-1 |
| SLES 16.0 | gstreamer-plugins-bad | 1.26.7-160000.3.1 | SUSE-SU-2026:22817-1 |
| SLE Micro 6.2 | gstreamer-plugins-bad | 1.26.7-160000.3.1 | SUSE-SU-2026:22752-1 |
| SLE HPC 15 SP5 | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 | SUSE-SU-2026:3125-1 |
| SLE HPC 15 SP4 | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 | SUSE-SU-2026:3133-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | gstreamer-plugins-bad | 1.26.7-160000.3.1 | openSUSE-SU-2026:21370-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | gstreamer1-plugin-openh264 +3 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 |
| Amazon Linux 2 | gstreamer1-plugins-bad-free +1 | 1.18.4-5.amzn2.0.7 | ALAS2-2026-3833 |
Advisories 10
- WID-SEC-2026-2053 GStreamer: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 15, 2026
- ALAS2-2026-3833 Important: gstreamer1-plugins-bad-free security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 4, 2026
- ALAS2023-2026-1994 Important: gstreamer1-plugins-bad-free security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 4, 2026
- SUSE-SU-2026:22817-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 28, 2026
- SUSE-SU-2026:3299-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 28, 2026
- SUSE-SU-2026:22752-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 23, 2026
- openSUSE-SU-2026:21370-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 22, 2026
- SUSE-SU-2026:3125-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 21, 2026
- SUSE-SU-2026:3133-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 21, 2026
- SUSE-SU-2026:3058-1 Security update for gstreamer-plugins-bad SUSE / openSUSE Security Updates · Jul 16, 2026