CVE-2018-14424: gnome gnome_display_manager Use After Free
CVSS: 7.8v3.0HighModified
AliasesSUSE-SU-2018:2527-1SUSE-SU-2018:2771-1UBUNTU-CVE-2018-14424USN-3737-1DEBIAN-CVE-2018-14424DLA-1494-1DSA-4270-1
Published 14-08-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-14424 is a high (CVSS 7.8) Use After Free vulnerability in gnome gnome_display_manager. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.0 (NVD)EPSS score
0.54%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 14-08-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.54%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
0.00 pp
From 0.53% on 19-09-2026
19-09-202619-10-2026
EPSS score0.54%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse5 products
- gdm&distro=SUSE Linux Enterprise Desktop 12 SP3< 3.10.0.1-54.6.3
- gdm&distro=SUSE Linux Enterprise Module for Desktop Applications 15< 3.26.2.1-13.9.1
- gdm&distro=SUSE Linux Enterprise Server 12 SP3< 3.10.0.1-54.6.3
- gdm&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP3< 3.10.0.1-54.6.3
- gdm&distro=SUSE Linux Enterprise Software Development Kit 12 SP3< 3.10.0.1-54.6.3
Debian1 product
- gdm3< 3.28.2-4 | < 3.22.3-3+deb9u2 | < 3.14.1-7+deb8u1
Gnome1 product
- gnome_display_manager≤ 3.29.1
Ubuntu1 product
- gdm3All versions (No fix recorded) | < 3.28.2-0ubuntu1.4
4 vendors · 8 products
