CVE-2017-2624

It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.
Configurations

Configuration 1 (hide)

cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-07-27 18:29

Updated : 2024-02-28 16:48


NVD link : CVE-2017-2624

Mitre link : CVE-2017-2624

CVE.ORG link : CVE-2017-2624


JSON object : View

Products Affected

x.org

  • xorg-server

debian

  • debian_linux
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-385

Covert Timing Channel