CVE Vulnerability

CVE-2021-4011

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 SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lists.x.org/archives/xorg-announce/2021-December/003124.html Vendor Advisory
https://lists.x.org/archives/xorg-announce/2021-December/003122.html Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/ Mailing List Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1550/ Third Party Advisory VDB Entry
https://www.debian.org/security/2021/dsa-5027 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00035.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/ Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20220114-0004/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x_server:21.1.1:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x_server:21.1.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Information

Published : 2021-12-17 05:15

Updated : 2022-03-30 04:37

NVD link : CVE-2021-4011

Mitre link : CVE-2021-4011

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer