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
EPSS: 0.012 (65.5th percentile) — read the EPSS interpretation.
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.
Affected products
- Gstreamer
- Debian Debian_linux — versions 9.0, 10.0
- Redhat Enterprise_linux — versions 7.0, 8.0
- N/a Gstreamer-plugins-good — versions gstreamer-plugins-good 1.18.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
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.