Vulnerability-Lookup

RHSA-2026:55435

Vulnerability from csaf_opensuse - Published: 2026-08-17 03:49 - Updated: 2026-08-18 02:05

Summary

Red Hat Security Advisory: gstreamer1-plugins-ugly-free security update

Severity

Important

Notes

Topic: An update for gstreamer1-plugins-ugly-free is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: GStreamer is a streaming media framework, based on graphs of elements which operate on media data. This package contains plug-ins whose license is not fully compatible with LGPL. Security Fix(es): * gstreamer: gstreamer1-plugins-ugly-free: gstreamer: integer overflow/underflow in asfdemux bounds checks leading to out-of-bounds read (CVE-2026-19389) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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.

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

CWE-190 - Integer Overflow or Wraparound

Affected products

Fixed 10 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.2.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.2.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.2.src	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.2.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-debuginfo-0:1.26.7-2.el10_2.2.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-debuginfo-0:1.26.7-2.el10_2.2.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-debuginfo-0:1.26.7-2.el10_2.2.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-debugsource-0:1.26.7-2.el10_2.2.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-debugsource-0:1.26.7-2.el10_2.2.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-ugly-free-debugsource-0:1.26.7-2.el10_2.2.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

11 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:55435	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2513016	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-19389	self
https://bugzilla.redhat.com/show_bug.cgi?id=2513016	external
https://www.cve.org/CVERecord?id=CVE-2026-19389	external
https://nvd.nist.gov/vuln/detail/CVE-2026-19389	external
https://gitlab.freedesktop.org/gstreamer/gstreame…	external
https://gstreamer.freedesktop.org/releases/1.28/	external
https://gstreamer.freedesktop.org/security/sa-202…	external

Acknowledgments

Seonwook Kim

JSON

To clipboard

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  "vulnerabilities": [
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      "cve": "CVE-2026-19389",
      "cwe": {
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      "discovery_date": "2026-08-10T02:27:47.576000+00:00",
      "ids": [
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        {
          "category": "description",
          "text": "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.",
          "title": "Vulnerability description"
        },
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          "text": "gstreamer: gstreamer1-plugins-ugly-free: gstreamer: integer overflow/underflow in asfdemux bounds checks leading to out-of-bounds read",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important flaw. Integer overflow and underflow vulnerabilities in the GStreamer ASF demuxer can lead to a denial of service and limited heap information disclosure. This occurs when processing specially crafted ASF/WMV/WMA files, a risk amplified by the demuxer being automatically utilized by GStreamer\u0027s common playback elements in Red Hat products.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-19389"
        },
        {
          "category": "external",
          "summary": "RHBZ#2513016",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513016"
        },
        {
          "category": "external",
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        {
          "category": "external",
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        },
        {
          "category": "external",
          "summary": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12233",
          "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12233"
        },
        {
          "category": "external",
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          "url": "https://gstreamer.freedesktop.org/releases/1.28/"
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        {
          "category": "external",
          "summary": "https://gstreamer.freedesktop.org/security/sa-2026-0075.html",
          "url": "https://gstreamer.freedesktop.org/security/sa-2026-0075.html"
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      ],
      "release_date": "2026-08-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-17T03:49:14+00:00",
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          "restart_required": {
            "category": "none"
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        },
        {
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
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            "AppStream-10.2.Z:gstreamer1-plugins-ugly-free-0:1.26.7-2.el10_2.2.ppc64le",
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "gstreamer: gstreamer1-plugins-ugly-free: gstreamer: integer overflow/underflow in asfdemux bounds checks leading to out-of-bounds read"
    }
  ]
}

CVE-2026-19389 (GCVE-0-2026-19389)

Vulnerability from cvelistv5 – Published: 2026-08-10 02:57 – Updated: 2026-08-17 23:33

Title

Gstreamer: gstreamer1-plugins-ugly-free: gstreamer: integer overflow/underflow in asfdemux bounds checks leading to out-of-bounds read

Summary

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-10 17:25 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

redhat redhat root

References

7 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:55435	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55865	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-19389	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2513016	issue-trackingx_refsource_REDHAT
https://gitlab.freedesktop.org/gstreamer/gstreame…
https://gstreamer.freedesktop.org/releases/1.28/
https://gstreamer.freedesktop.org/security/sa-202…

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:1.26.7-2.el10_2.2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:1.22.12-7.el9_8.4 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:1.22.12-6.el9_8.2 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8

Date Public

2026-08-05 00:00

Credits

Red Hat would like to thank Seonwook Kim for reporting this issue.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

RHSA-2026:55435

CVE-2026-19389 (GCVE-0-2026-19389)

Tags

Sightings

Nomenclature