Description (CNA)
A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| GStreamer / gst-plugins-good | affected 0 before 1.28.6 |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:1.26.7-2.el10_2.5 before * |
| Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:1.24.11-1.el10_0.4 before * |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:1.10.4-4.el7_9.3 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 0:1.16.1-7.el8_10.3 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:1.16.1-4.el8_4.2 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:1.16.1-4.el8_4.2 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:1.16.1-4.el8_6.3 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | unaffected 0:1.16.1-4.el8_6.3 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:1.16.1-5.el8_8.3 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | unaffected 0:1.16.1-5.el8_8.3 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:1.22.12-7.el9_8.4 before * |
| Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:1.18.4-8.el9_2.3 before * |
| Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | unaffected 0:1.22.1-4.el9_4.3 before * |
| Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:1.22.12-5.el9_6.3 before * |
CWE
CWE-191
References
- https://access.redhat.com/errata/RHSA-2026:55434
- https://access.redhat.com/errata/RHSA-2026:55436
- https://access.redhat.com/errata/RHSA-2026:56966
- https://access.redhat.com/errata/RHSA-2026:65959
- https://access.redhat.com/errata/RHSA-2026:68642
- https://access.redhat.com/errata/RHSA-2026:68644
- https://access.redhat.com/errata/RHSA-2026:68645
- https://access.redhat.com/errata/RHSA-2026:69232
- https://access.redhat.com/errata/RHSA-2026:70264
- https://access.redhat.com/errata/RHSA-2026:70584
- https://access.redhat.com/errata/RHSA-2026:70803
- https://access.redhat.com/security/cve/CVE-2026-73433
- https://bugzilla.redhat.com/show_bug.cgi?id=2514801
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
- https://gstreamer.freedesktop.org/security/sa-2026-0072.html
ADP enrichment
No English description supplied.
No references supplied.