Use After Free in Gstreamer
CVE-2021-3497
GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Gstreamer
- Debian Linux — versions 9.0, 10.0
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Gstreamer-Plugins-Good — versions gstreamer-plugins-good 1.18.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- gstreamer.freedesktop.org/security/sa-2021-0002.html (Vendor Advisory)
- www.debian.org/security/2021/dsa-4900 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/04/msg00027.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202208-31 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3497?
- CVE-2021-3497 is a high-severity vulnerability in Gstreamer, classified under Use After Free. CVSS score: 7.8/10. Published 2021-04-19.
- How severe is CVE-2021-3497?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-3497 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.