CVE-2018-5178: canonical ubuntu_linux
CVSS: 8.1v3.0HighModified
AliasesUBUNTU-CVE-2018-5178DEBIAN-CVE-2018-5178
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-5178 is a high (CVSS 8.1) vulnerability in canonical ubuntu_linux. EPSS estimates a 4.89% chance of exploitation in the next 30 days, higher than 91.9% of scored vulnerabilities.
CVSS score
8.1/10
010
High · v3.0 (NVD)EPSS score
4.89%
0%100%
Low · -0.10 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 18 · Related 7Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR < 52.8, Thunderbird < 52.8, and Firefox ESR < 52.8.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.1Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
4.89%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
-0.10 pp
From 4.99% on 18-09-2026
18-09-202618-10-2026
EPSS score4.89%
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
Mozilla4 products
- firefox< 52.8.0
- firefox_esr≥ unspecified, < 52.8
- thunderbird≥ unspecified, < 52.8 | < 52.8.0
- thunderbird_esr≥ unspecified, < 52.8 | < 52.8.0
Debian3 products
- firefox-esr< 52.8.0esr-1
- thunderbird< 1:52.8.0-1
- debian_linuxEOL7.0 | 8.0 | 9.0
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 · 15 products
References
21 links
- lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 21 references
- lists.debian.org/debian-lts-announce/2018/05/msg00007.htmlMailing ListX Refsource MLISTThird Party Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1443891X Refsource CONFIRMIssue TrackingPermissions RequiredVendor Advisory