CVE-2018-6942: canonical ubuntu_linux NULL Pointer Dereference
CVSS: 6.5v3.0MediumModified
AliasesALPINE-CVE-2018-6942MGASA-2018-0140SUSE-SU-2020:1353-1DEBIAN-CVE-2018-6942openSUSE-SU-2020:0704-1
Published 13-02-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-6942 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.08% chance of exploitation in the next 30 days, higher than 81.2% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
2.08%
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
- 13-02-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.08%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.08% on 18-09-2026
18-09-202618-10-2026
EPSS score2.08%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Opensuse2 products
- freetype2&distro=openSUSE Leap 15.1< 2.10.1-lp151.4.3.1
- ft2demos&distro=openSUSE Leap 15.1< 2.10.1-lp151.4.3.1
Alpine1 product
- freetype< 2.9-r1 | < 2.7-r2 | < 2.7.1-r2 | < 2.8.1-r3
Canonical1 product
- ubuntu_linuxEOL17.10
Debian1 product
- freetype< 2.9.1-3
Freetype1 product
- freetype≤ 2.9
Mageia1 product
- freetype2< 2.7.1-2.2.mga6 | < 2.7.1-2.2.mga6.tainted
Suse1 product
- freetype2&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 2.10.1-4.3.1
7 vendors · 8 products
References
15 links- git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497efX Refsource MISCPatchThird Party Advisory
- www.oracle.com/security-alerts/cpuapr2020.htmlX Refsource MISC
Show all 15 references
- lists.opensuse.org/archives/…Advisory