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Fencer Vulns
high 7.5

CVE-2023-6349 json

Heap overflow in libvpx

published 2024-05-27 2 y ago modified 2026-07-18 3 mo ago also EUVD-2023-58590 , JLSEC-2026-376

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

A heap overflow vulnerability exists in libvpx - Encoding a frame that has larger dimensions than the originally configured size with VP9 may result in a heap overflow in libvpx. We recommend upgrading to version 1.13.1 or above

Patch / fix

  • julia LibVPX_jll 1.15.2+0
  • Chromium libvpx 1.13.1
  • libvpx Debian 12 1.12.0-1+deb12u2
  • libvpx Debian 14, Debian 13 1.13.1-2

debian advisories DEBIAN-CVE-2023-6349

  • libvpx Ubuntu 20.04 LTS 1.8.2-1ubuntu0.2
  • libvpx Ubuntu 22.04 LTS 1.11.0-2ubuntu2.2
  • libvpx Ubuntu Pro 16.04 LTS 1.5.0-2ubuntu1.1+esm2
  • libvpx Ubuntu Pro 18.04 LTS 1.7.0-3ubuntu0.18.04.1+esm1

ubuntu advisories UBUNTU-CVE-2023-6349

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libvpx RHEL 8 1.7.0-11.el8_10

red hat advisories RHSA-2024:5941

  • libvpx SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Module for Package Hub 15 SP6 +9 more 1.11.0-150400.3.7.1
  • libvpx SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +10 more 1.6.1-150000.6.16.1

suse advisories SUSE-SU-2024:2409-1SUSE-SU-2024:2408-1

  • libvpx AlmaLinux 8 1.7.0-11.el8_10

almalinux advisories ALSA-2024:5941

  • libvpx Rocky Linux 8 1.7.0-11.el8_10

rocky linux advisories RLSA-2024:5941

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-6349 updated cvss 6.5

libvpx: Heap buffer overflow related to VP9 encoding

  • Red Hat Enterprise Linux 6 libvpx, libvpx-utils Red Hat Enterprise Linux 7 libvpx, firefox, thunderbird, libvpx-utils
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 libvpx
    affected: no fix available
  • Red Hat AI Inference Server 3.2 rhaiis 1772713830
    fixed: vendor fix RHSA-2026:4128
  • Red Hat Enterprise Linux AppStream (v. 8) libvpx 1.7.0-11.el8_10 Red Hat Enterprise Linux CRB (v. 8) libvpx-devel 1.7.0-11.el8_10, libvpx-debuginfo 1.7.0-11.el8_10, libvpx-debugsource 1.7.0-11.el8_10, libvpx-utils-debuginfo 1.7.0-11.el8_10
    fixed: vendor fix RHSA-2024:5941
  • Red Hat Enterprise Linux 8 firefox, thunderbird Red Hat Enterprise Linux 9 firefox, firefox-x11, thunderbird Red Hat Enterprise Linux 10 libvpx
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • crbug.com https://crbug.com/webm/1642 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 5.7 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/S:N/AU:N/R:A/V:D
CNA 4.0 5.7 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:A/V:D/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia LibVPX_jll
<1.15.2+0
1.15.2+0

Affected products

  • Chromium libvpx

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.