CVE-2018-5153: canonical ubuntu_linux Out-of-bounds Read
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-5153
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-5153 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 1.65% chance of exploitation in the next 30 days, higher than 76% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
1.65%
0%100%
Low · -0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.
CVSS metrics
3 scores · 2 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 2 agree
- OSV · UbuntuEcosystem 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
1.65%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
-0.03 pp
From 1.68% on 18-09-2026
18-09-202618-10-2026
EPSS score1.65%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 17.10 | 18.04
Mozilla1 product
- firefox≥ unspecified, < 60 | < 60.0
Ubuntu1 product
- firefox< 60.0+build2-0ubuntu0.14.04.1 | < 60.0+build2-0ubuntu0.16.04.1 | < 60.0+build2-0ubuntu1
3 vendors · 3 products