Bug 2151761 (CVE-2022-4283)
| Summary: | CVE-2022-4283 xorg-x11-server: XkbGetKbdByName use-after-free | ||
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| Product: | [Other] Security Response | Reporter: | Sandipan Roy <saroy> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | ajax, jgrulich, ofourdan, peter.hutterer, security-response-team |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A vulnerability was found in X.Org. This issue occurs because the XkbCopyNames function leaves a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests. This flaw can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-01-11 12:00:40 UTC | 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: | 2151799, 2151800, 2151801, 2151802, 2151803, 2153127, 2153128, 2153129, 2153130, 2154205, 2154206, 2154233, 2154234, 2154267 | ||
| Bug Blocks: | 2151201 | ||
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Description
Sandipan Roy
2022-12-08 05:12:22 UTC
Xorg server does not run with root privileges in Red Hat Enterprise Linux 8 and 9, therefore Red Hat Enterprise Linux 8 and 9 have been rated with a moderate severity. Created xorg-x11-server tracking bugs for this issue: Affects: fedora-36 [bug 2153127] Affects: fedora-37 [bug 2153128] Created xorg-x11-server-Xwayland tracking bugs for this issue: Affects: fedora-36 [bug 2153129] Affects: fedora-37 [bug 2153130] Created tigervnc tracking bugs for this issue: Affects: fedora-36 [bug 2154205] Affects: fedora-37 [bug 2154206] This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2023:0045 https://access.redhat.com/errata/RHSA-2023:0045 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2023:0046 https://access.redhat.com/errata/RHSA-2023:0046 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-4283 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:2248 https://access.redhat.com/errata/RHSA-2023:2248 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:2249 https://access.redhat.com/errata/RHSA-2023:2249 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:2257 https://access.redhat.com/errata/RHSA-2023:2257 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:2805 https://access.redhat.com/errata/RHSA-2023:2805 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:2806 https://access.redhat.com/errata/RHSA-2023:2806 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:2830 https://access.redhat.com/errata/RHSA-2023:2830 |