CVE-2021-4009
Published: August 31, 2023Last modified: August 31, 2023
Description
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | xorg-server | Not affected (21.1.8-r0) |
| Stream | xorg-server | Not affected (21.1.8-r3) |
References
- https://lists.debian.org/debian-lts-announce/2021/12/msg00035.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
- https://lists.x.org/archives/xorg-announce/2021-December/003122.html
- https://lists.x.org/archives/xorg-announce/2021-December/003124.html
- https://security.gentoo.org/glsa/202305-30
- https://security.netapp.com/advisory/ntap-20220114-0004/
- https://www.debian.org/security/2021/dsa-5027
- https://www.zerodayinitiative.com/advisories/ZDI-21-1548/