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CVE-2021-4008

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Date: December 16, 2021

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

Language: C

Severity Score

Related Resources (21)

https://www.debian.org/security/2021/dsa-5027
https://security.netapp.com/advisory/ntap-20220114-0004/
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.debian.org/debian-lts-announce/2021/12/msg00035.html
https://access.redhat.com/security/cve/CVE-2021-4008
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/
https://security-tracker.debian.org/tracker/CVE-2021-4008
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-4008
https://lists.x.org/archives/xorg-announce/2021-December/003122.html
https://www.zerodayinitiative.com/advisories/ZDI-21-1547/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
https://lists.x.org/archives/xorg-announce/2021-December/003124.html
https://security.gentoo.org/glsa/202305-30
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
https://nvd.nist.gov/vuln/detail/CVE-2021-4008
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/
https://security.alpinelinux.org/vuln/CVE-2021-4008
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
https://www.mend.io/vulnerability-database/CVE-2021-4008

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

Top Fix

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Upgrade Version

Upgrade to version xorg-server-1.20.14,xorg-server-21.1.2

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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