CVE-2021-4008

January 2, 2022

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.

Summary:

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.

Reference Links(if available):

  • https://lists.x.org/archives/xorg-announce/2021-December/003124.html
  • https://lists.x.org/archives/xorg-announce/2021-December/003122.html
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
  • https://www.zerodayinitiative.com/advisories/ZDI-21-1547/

    • CVSS Score (if available)

    v2: / MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

    v3: / HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

    Links to Exploits(if available)

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