CVE-2017-2624
Description
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.
Risk Information
Base Score
7.0
MODERATE
Vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.046
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| X.Org X11 server (USN-3362-1) xserver-xorg-core_1.18.4-0ubuntu0.3_i386.deb | Linux |
| X.Org X11 server (USN-3362-1) xserver-xorg-core_1.18.4-0ubuntu0.3_amd64.deb | Linux |
| X.Org X11 server (USN-3362-1) xserver-xorg-core_1.19.3-1ubuntu1.1_i386.deb | Linux |
| X.Org X11 server (USN-3362-1) xserver-xorg-core_1.19.3-1ubuntu1.1_amd64.deb | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234