Out-of-bounds Write

Affecting libx11 package, versions <2:1.6.3-1ubuntu2.1

Report new vulnerabilities
Do your applications use this vulnerable package? Test your applications

Overview

An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.

References

CVSS Score

9.8
medium severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE
CVE-2018-14600
CWE
CWE-787
Snyk ID
SNYK-UBUNTU1604-LIBX11-339146
Disclosed
24 Aug, 2018
Published
25 Sep, 2018