CVE-2021-4009

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.

• CWE-119
• CWE-119

• https://lists.debian.org/debian-lts-announce/2021/12/msg00035.htmlMailing List, Third Party Advisory
• 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.x.org/archives/xorg-announce/2021-December/003122.htmlVendor Advisory
• https://lists.x.org/archives/xorg-announce/2021-December/003124.htmlVendor Advisory
• https://security.gentoo.org/glsa/202305-30
• https://security.netapp.com/advisory/ntap-20220114-0004/Third Party Advisory
• https://www.debian.org/security/2021/dsa-5027Third Party Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-1548/Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2021/12/msg00035.htmlMailing List, Third Party Advisory
• 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.x.org/archives/xorg-announce/2021-December/003122.htmlVendor Advisory
• https://lists.x.org/archives/xorg-announce/2021-December/003124.htmlVendor Advisory
• https://security.gentoo.org/glsa/202305-30
• https://security.netapp.com/advisory/ntap-20220114-0004/Third Party Advisory
• https://www.debian.org/security/2021/dsa-5027Third Party Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-1548/Third Party Advisory, VDB Entry

Published

Dec 17, 2021

Last Modified

Jun 17, 2026

Status

Modified

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