Description
A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High
Affected products
- X.Org / xwayland0 – 24.1.7
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10258
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10342
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10343
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10344
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10346
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10347
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10348
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10349
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10350
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10351
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10352
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10355
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10356
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10360
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10370
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10374
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10375
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10376
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10377
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10378
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10381
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:10410
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:9303
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:9304
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:9305
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:9306
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:9392
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2025:9964
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2025-49176
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2369954
- MISChttps://gitlab.freedesktop.org/xorg/xserver/-/commit/03731b326a80b582e48d939fe62cb1e2b10400d9
- MISChttps://gitlab.freedesktop.org/xorg/xserver/-/commit/4fc4d76b2c7aaed61ed2653f997783a3714c4fe1
- MISChttps://www.x.org/wiki/Development/Security/
Updated 31m ago · 8 sources