An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.
| Vendor | Product | Versions |
|---|---|---|
| ? | ? | 21.1.0 |
| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support | EXTENSION — 0:1.1.0-25.el6_10.13 |
| Red Hat | Red Hat Enterprise Linux 7 | 0:1.20.4-27.el7_9 |
| Red Hat | Red Hat Enterprise Linux 7 | 0:1.8.0-31.el7_9 |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.13.1-2.el8_9.7 |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.20.11-22.el8 |
| Red Hat | Red Hat Enterprise Linux 8 | 0:21.1.3-15.el8 |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | 0:1.9.0-15.el8_2.9 |
| Red Hat | Red Hat Enterprise Linux 8.2 Telecommunications Update Service | 0:1.9.0-15.el8_2.9 |
| Red Hat | Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | 0:1.9.0-15.el8_2.9 |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:1.11.0-8.el8_4.8 |
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | 0:1.11.0-8.el8_4.8 |
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | 0:1.11.0-8.el8_4.8 |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | 0:1.12.0-6.el8_6.9 |
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | 0:1.12.0-15.el8_8.7 |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.13.1-3.el9_3.6 |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.20.11-24.el9 |
| Red Hat | Red Hat Enterprise Linux 9 | 0:22.1.9-5.el9 |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 0:1.11.0-22.el9_0.8 |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | 0:1.12.0-14.el9_2.5 |
| Red Hat | Red Hat Enterprise Linux 6 | unspecified |
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.