Integer Overflow or Wraparound

Affecting libx11 package, versions <1.6.12-r0

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NVD Description

Note: Versions mentioned in the description apply to the upstream libx11 package. See Remediation section below for Alpine:3.12 relevant versions.

An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.

Remediation

Upgrade Alpine:3.12 libx11 to version 1.6.12-r0 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-2020-14363
CWE
CWE-190 CWE-416
Snyk ID
SNYK-ALPINE312-LIBX11-608580
Disclosed
11 Sep, 2020
Published
26 Aug, 2020