CVE-2018-5184: canonical ubuntu_linux Inadequate Encryption Strength
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-5184DEBIAN-CVE-2018-5184
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-5184 is a high (CVSS 7.5) Inadequate Encryption Strength vulnerability in canonical ubuntu_linux. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.3% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
1.74%
0%100%
Low · -0.04 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
Using remote content in encrypted messages can lead to the disclosure of plaintext. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.74%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
-0.04 pp
From 1.77% on 18-09-2026
18-09-202618-10-2026
EPSS score1.74%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat7 products
- enterprise_linuxEOL6.0 | 7.0
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.6
- enterprise_linux_server_eus7.5 | 7.6
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 | < 52.8.0
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 · 13 products
References
15 links
lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory- bugzilla.mozilla.org/show_bug.cgi?id=1411592X Refsource CONFIRMIssue TrackingPermissions RequiredVendor Advisory