CVE-2018-5160: canonical ubuntu_linux Use After Free
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-5160
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-5160 is a high (CVSS 7.5) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 2.60% chance of exploitation in the next 30 days, higher than 85.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
2.60%
0%100%
Low · -0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
WebRTC can use a "WrappedI420Buffer" pixel buffer but the owning image object can be freed while it is still in use. This can result in the WebRTC encoder using uninitialized memory, leading to a potentially exploitable crash. 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:N/I:N/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.60%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
-0.05 pp
From 2.65% on 19-09-2026
19-09-202619-10-2026
EPSS score2.60%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
- CWE-908Use of Uninitialized ResourceThe product uses or accesses a resource that has not been initialized.
Affected 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
References
9 links- bugzilla.mozilla.org/show_bug.cgi?id=1436117X Refsource CONFIRMIssue TrackingPermissions RequiredVendor Advisory