Read the docs
TI-2023-21292 Aliases CVE-2023-40476GHSA-jh94-w345-vcxj

Stack-based buffer overflow in GStreamer

Priority MEDIUM 44CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-121 and the CVSS impact.

Summary

GStreamer H265 Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of H265 encoded video files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-21768.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02256 83rd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GStreamerGStreamer1.22.4 and 8dddb9ad2009705dfc3e50d59d7c56fc7314cfc3—No fix listedCNA
  • GStreamer VendorGStreamer Affected 1.22.4 and 8dddb9ad2009705dfc3e50d59d7c56fc7314cfc3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*before 1.22.6VulnerableGStreamer
  • cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:* Versions before 1.22.6 Vulnerable ·GStreamer

Remediation

Red Hat 2 advisories

  • RHSA-2024:3060 Released 2024-05-22 · Red Hat rating Moderate
    gstreamer1-plugins-bad-free security update
    • Red Hat Enterprise Linux AppStream (v. 8) gstreamer1-plugins-bad-free-1.16.1-4.el8
    • Red Hat Enterprise Linux CRB (v. 8) gstreamer1-plugins-bad-free-devel-1.16.1-4.el8
  • RHSA-2024:2287 Released 2024-04-30 · Red Hat rating Moderate
    gstreamer1-plugins-bad-free security update
    • Red Hat Enterprise Linux AppStream (v. 9) gstreamer1-plugins-bad-free-1.22.1-4.el9
    • Red Hat Enterprise Linux CRB (v. 9) gstreamer1-plugins-bad-free-devel-1.22.1-4.el9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:3060
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:2287
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:3060
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:2287

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40476
  2. 2026-10-03 Alias added: GHSA-jh94-w345-vcxj

References

Patch 1

Advisory 1

  • TI-2025-29786 In GStreamer through 1.26.1, the isomp4 plugin's qtdemux_parse_trak function may read… CVSS 3.1HIGH 8.1
  • TI-2024-31895 GHSL-2024-117: GStreamer has an out-of-bounds write in Ogg demuxer CVSS 4.0HIGH 8.6
  • TI-2024-31893 GHSL-2024-118: GStreamer has a null pointer dereference in gst_gdk_pixbuf_dec_flush CVSS 4.0HIGH 8.6
  • TI-2024-31887 GHSL-2024-116: Stack-buffer overflow in gst_opus_dec_parse_header CVSS 4.0HIGH 8.6
  • TI-2024-31829 GHSL-2024-197: GStreamer uses uninitialized stack memory in Matroska/WebM demuxer CVSS 4.0HIGH 8.6
  • TI-2024-31828 GHSL-2024-195: GStreamer has an OOB-write in convert_to_s334_1a CVSS 4.0HIGH 8.6
See all 109 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences