Integer Overflow or Wraparound

Affecting xorg-server package, versions <2:1.19.2-1+deb9u6

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Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound. A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Remediation

Upgrade xorg-server to version or higher.

References

CVSS Score

7.8
high severity
  • Attack Vector
    Local
  • Attack Complexity
    Low
  • Privileges Required
    Low
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE
CVE-2020-14346
CWE
CWE-190
Snyk ID
SNYK-DEBIAN9-XORGSERVER-608570
Disclosed
15 Sep, 2020
Published
26 Aug, 2020