CVE-2025-49179
High
Description
A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.
SeverityHigh
CVSS7.3
Exploit probability—
Product
X.org Xwayland
PublishedJun 17, 2025
First seenJun 17, 2025
Weakness typeCWE-190Integer overflow
How to fix
Update
- X.Org xwayland24.1.7 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2025:10258
- access.redhat.com/errata/RHSA-2025:10342
- access.redhat.com/errata/RHSA-2025:10343
- access.redhat.com/errata/RHSA-2025:10344
- access.redhat.com/errata/RHSA-2025:10346
- access.redhat.com/errata/RHSA-2025:10347
- access.redhat.com/errata/RHSA-2025:10348
- access.redhat.com/errata/RHSA-2025:10349
- access.redhat.com/errata/RHSA-2025:10350
- access.redhat.com/errata/RHSA-2025:10351
- access.redhat.com/errata/RHSA-2025:10352
- access.redhat.com/errata/RHSA-2025:10355
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| X.Org xwayland | v < 24.1.7 | 24.1.7 |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | No range specified | — |
| rhel_aus 7.7 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_aus 8.2 | No range specified | — |
| rhel_aus 8.4 | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_e4s 9.0 | No range specified | — |
| rhel_e4s 9.2 | No range specified | — |
| rhel_eus 9.4 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 6 | No range specified | — |
Check your version
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