CVE-2021-4011

CVSS V2 High 7.2 CVSS V3 High 7.8
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 SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Overview
  • CVE ID
  • CVE-2021-4011
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-12-17T17:15:13
  • Last Modified Date
  • 2022-03-30T16:37:19
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* 1 OR 1.20.14
cpe:2.3:a:x.org:x_server:21.1.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:x.org:x_server:21.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4011
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4011
History
Created Old Value New Value Data Type Notes
2022-04-04 00:40:09 Added to TrackCVE
2022-12-06 04:19:11 2021-12-17T17:15Z 2021-12-17T17:15:13 CVE Published Date updated
2022-12-06 04:19:11 2022-03-30T16:37:19 CVE Modified Date updated
2022-12-06 04:19:11 Analyzed Vulnerability Status updated