UBUNTU-CVE-2026-59692
A stack buffer overflow vulnerability exists in GStreamer's DTLS plugin where the peer certificate Subject Distinguished Name is copied into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN, causing a stack buffer overflow that crashes the process and results in denial of service.
AI Analysis
Technical Summary
The vulnerability in GStreamer's DTLS plugin arises from improper handling of the peer certificate's Subject Distinguished Name during the DTLS handshake. The Subject DN is printed into a fixed-size 2048-byte stack buffer without verifying its length, allowing a remote unauthenticated attacker to send a certificate with an oversized Subject DN. This triggers a stack buffer overflow, leading to a process crash and denial of service. The affected product is gst-plugins-bad1.0 with multiple specific Ubuntu package versions impacted.
Potential Impact
Exploitation of this vulnerability results in a denial of service due to process crash caused by stack buffer overflow. There is no indication of confidentiality or integrity impact. The attacker does not require authentication and can trigger the crash remotely during the DTLS handshake.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor vendor communications for updates and apply patches once available.
UBUNTU-CVE-2026-59692
Description
A stack buffer overflow vulnerability exists in GStreamer's DTLS plugin where the peer certificate Subject Distinguished Name is copied into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN, causing a stack buffer overflow that crashes the process and results in denial of service.
CVSS v3.1
Score 7.5high
Affected software
pkg:deb/ubuntu/[email protected]~ubuntu1.1?arch=source&distro=trustypkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-apps/xenialpkg:deb/ubuntu/[email protected]~18.04.1+esm1?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in GStreamer's DTLS plugin arises from improper handling of the peer certificate's Subject Distinguished Name during the DTLS handshake. The Subject DN is printed into a fixed-size 2048-byte stack buffer without verifying its length, allowing a remote unauthenticated attacker to send a certificate with an oversized Subject DN. This triggers a stack buffer overflow, leading to a process crash and denial of service. The affected product is gst-plugins-bad1.0 with multiple specific Ubuntu package versions impacted.
Potential Impact
Exploitation of this vulnerability results in a denial of service due to process crash caused by stack buffer overflow. There is no indication of confidentiality or integrity impact. The attacker does not require authentication and can trigger the crash remotely during the DTLS handshake.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor vendor communications for updates and apply patches once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-59692
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a58b45968715ace43d6bbe7
Added to database: 07/16/2026, 10:37:13 UTC
Last enriched: 07/16/2026, 11:33:52 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 4
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