CVE-2018-12373: canonical ubuntu_linux
CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-12373DEBIAN-CVE-2018-12373
Published 18-10-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-12373 is a medium (CVSS 6.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 2.40% chance of exploitation in the next 30 days, higher than 83.7% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
2.40%
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 9 · Related 3Timeline
- 18-10-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.
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:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
2.40%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.40% on 19-09-2026
19-09-202619-10-2026
EPSS score2.40%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat4 products
- enterprise_linuxEOL6.0 | 7.0 | 7.5 | 7.6
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_workstation6.0 | 7.0
Debian2 products
- thunderbird< 1:52.9.0-1
- debian_linuxEOL8.0 | 9.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 17.10 | 18.04
Mozilla1 product
- thunderbird≥ unspecified, < 52.9 | < 52.9.0
Ubuntu1 product
- thunderbird< 1:52.9.1+build3-0ubuntu0.14.04.1 | < 1:52.9.1+build3-0ubuntu0.16.04.1 | < 1:52.9.1+build3-0ubuntu0.18.04.1
5 vendors · 9 products
References
15 links
- bugzilla.mozilla.org/show_bug.cgi?id=1464056X Refsource CONFIRMIssue TrackingPermissions RequiredVendor Advisory
- lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory