Out-of-Bounds Read in GStreamer (CVE-2021-3522)
Summary
Vulnerability in GStreamer (CVE-2021-3522). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
GStreamer before 1.18.4 may perform an out-of-bounds read when handling certain ID3v2 tags.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2021-3522 was discovered in GStreamer.
Severity is Medium (CVSS 5.5/10). Exploitation requires specific conditions but can cause real harm if successful.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "GStreamer CVE-2021-3522".
CVE-2021-3522 (GStreamer). Severity: Medium / CVSSv3 5.5. Category: CWE-125.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2021-3522) in GStreamer. A serious software flaw has been identified.
Target versions of GStreamer (see vendor advisory). If running in production, identify exposure immediately.
Severity: Medium (CVSS 5.5/10). Exploitation requires specific conditions but can cause real harm if successful.
Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-125)
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2021-3522 gst-plugins-base Fixed in: 1.18.4-r0
- Debian DEBIAN-CVE-2021-3522 gst-plugins-base1.0 Fixed in: 1.18.4-2
- Ubuntu UBUNTU-CVE-2021-3522 gst-plugins-base1.0 Fixed in: 1.8.3-1ubuntu0.3+esm1
References
- advisory security.gentoo.org
- advisory security.netapp.com
- patch oracle.com
- report bugzilla.redhat.com