CVE-2018-5161: canonical ubuntu_linux Improper Input Validation
CVSS: 4.3v3.0MediumModified
AliasesUBUNTU-CVE-2018-5161DEBIAN-CVE-2018-5161
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-5161 is a medium (CVSS 4.3) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 1.98% chance of exploitation in the next 30 days, higher than 80.2% of scored vulnerabilities.
CVSS score
4.3/10
010
Medium · v3.0 (NVD)EPSS score
1.98%
0%100%
Low · -0.07 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 2Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Crafted message headers can cause a Thunderbird process to hang on receiving the message. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:LSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.98%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
-0.07 pp
From 2.05% on 18-09-2026
18-09-202618-10-2026
EPSS score1.98%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat6 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.6
- enterprise_linux_server_eus7.5 | 7.6
- enterprise_linux_server_tus7.6
Debian2 products
- thunderbird< 1:52.8.0-1
- debian_linuxEOL7.0 | 8.0 | 9.0
Mozilla2 products
- thunderbird≥ unspecified, < 52.8 | < 52.8.0
- thunderbird_esr≥ unspecified, < 52.8 | < 52.8
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 17.10 | 18.04
Ubuntu1 product
- thunderbird< 1:52.8.0+build1-0ubuntu0.14.04.1 | < 1:52.8.0+build1-0ubuntu0.16.04.1 | < 1:52.8.0+build1-0ubuntu0.18.04.1
5 vendors · 12 products
References
14 links
lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory