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Echo: gst-plugins-good1.0: security update to 1.26.2-1+e8

medium Tenable Self-Hosted Container Security Plugin ID 473610

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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).
 (CVE-2026-73433)

Solution

Update the gst-plugins-good1.0 library and its related packages to version 1.26.2-1+e8 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-73433

Plugin Details

Severity: Medium

ID: 473610

Version: Revision 1.1

Type: Local

Published: 10/7/2026

Updated: 10/7/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.47

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C

CVSS Score Source: CVE-2026-73433

CVSS v3

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/13/2026

Vulnerability Publication Date: 8/12/2026

Reference Information

CVE: CVE-2026-73433