Bug 2520572 (CVE-2026-18297)

Summary:	CVE-2026-18297 gstreamer: GStreamer: Arbitrary code execution via OGG file parsing buffer overflow
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in GStreamer. This vulnerability, a stack-based buffer overflow, occurs during the parsing of OGG files due to improper validation of user-supplied data length. A remote attacker could exploit this by tricking a user into visiting a malicious page or opening a malicious file, leading to arbitrary code execution within the context of the current process.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2521086, 2521087, 2521088, 2521089, 2521090
Bug Blocks:

Description OSIDB Bzimport 2026-08-20 16:52:27 UTC

GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of OGG files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29584.

Comment 2 errata-xmlrpc 2026-08-24 15:21:34 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:59097 https://access.redhat.com/errata/RHSA-2026:59097

Comment 5 errata-xmlrpc 2026-08-25 15:55:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:59487 https://access.redhat.com/errata/RHSA-2026:59487