Out-of-Bounds

Affecting xorg-server package, versions <2:1.19.4-1

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NVD Description

Note: Versions mentioned in the description apply to the upstream xorg-server package. See Remediation section below for Debian:10 relevant versions.

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.

Remediation

Upgrade Debian:10 xorg-server to version 2:1.19.4-1 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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE
CVE-2017-13723
CWE
CWE-119
Snyk ID
SNYK-DEBIAN10-XORGSERVER-326793
Disclosed
10 Oct, 2017
Published
10 Oct, 2017