Vulnerability Details : CVE-2018-14424
The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-14424
- cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-14424
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-14424
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2018-14424
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-14424
-
https://www.debian.org/security/2018/dsa-4270
Debian -- Security Information -- DSA-4270-1 gdm3Third Party Advisory
-
http://www.securityfocus.com/bid/105179
GNOME GDM CVE-2018-14424 Local Code Execution VulnerabilityThird Party Advisory;VDB Entry
-
https://gitlab.gnome.org/GNOME/gdm/issues/401
CVE-2018-14424 use-after-free of disposed transient displays (#401) · Issues · GNOME / gdm · GitLabThird Party Advisory
-
https://usn.ubuntu.com/3737-1/
USN-3737-1: GDM vulnerability | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/09/msg00003.html
[SECURITY] [DLA 1494-1] gdm3 security updateMailing List
Jump to