Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header… (CVE-2026-19389)
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values can bypass bounds checks and cause out-of-bounds heap reads. This can result in application crash, denial of service, or limited information disclosure when untrusted media is processed.
AI Analysis
Technical Summary
The vulnerability CVE-2026-19389 in the gstreamer1-plugins-ugly-free package involves an integer overflow or underflow in the asfdemux element's bounds checking logic. This flaw can cause an out-of-bounds read, potentially leading to memory corruption or application crashes. The issue affects Red Hat Enterprise Linux 10 across multiple architectures. Red Hat has released an updated package (version 1.26.7-2.el10_2.2) that fixes this vulnerability. The advisory classifies the security impact as Important. No CVSS base score is provided in the advisory.
Potential Impact
The integer overflow/underflow in asfdemux bounds checks can lead to out-of-bounds memory reads, which may cause application instability or crashes. The advisory does not specify further exploitation details or impact beyond this. The vulnerability affects the gstreamer1-plugins-ugly-free package used in media streaming processing on Red Hat Enterprise Linux 10 systems.
Mitigation Recommendations
Red Hat has released an updated package version 1.26.7-2.el10_2.2 for gstreamer1-plugins-ugly-free that addresses this vulnerability. Users should apply this official security update promptly to remediate the issue. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for detailed guidance on applying the patch. No other mitigation or workaround is specified or required.
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header… (CVE-2026-19389)
Description
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values can bypass bounds checks and cause out-of-bounds heap reads. This can result in application crash, denial of service, or limited information disclosure when untrusted media is processed.
CVSS v3.1
Score 7.1high
Affected software
pkg:rpm/redhat/gstreamer1-plugins-ugly-freeRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-19389 in the gstreamer1-plugins-ugly-free package involves an integer overflow or underflow in the asfdemux element's bounds checking logic. This flaw can cause an out-of-bounds read, potentially leading to memory corruption or application crashes. The issue affects Red Hat Enterprise Linux 10 across multiple architectures. Red Hat has released an updated package (version 1.26.7-2.el10_2.2) that fixes this vulnerability. The advisory classifies the security impact as Important. No CVSS base score is provided in the advisory.
Potential Impact
The integer overflow/underflow in asfdemux bounds checks can lead to out-of-bounds memory reads, which may cause application instability or crashes. The advisory does not specify further exploitation details or impact beyond this. The vulnerability affects the gstreamer1-plugins-ugly-free package used in media streaming processing on Red Hat Enterprise Linux 10 systems.
Mitigation Recommendations
Red Hat has released an updated package version 1.26.7-2.el10_2.2 for gstreamer1-plugins-ugly-free that addresses this vulnerability. Users should apply this official security update promptly to remediate the issue. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for detailed guidance on applying the patch. No other mitigation or workaround is specified or required.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:55435
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a83336dbf8831d5392a7e2e
Added to database: 08/17/2026, 16:14:37 UTC
Last enriched: 08/17/2026, 16:34:51 UTC
Last updated: 08/18/2026, 00:42:13 UTC
Views: 6
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