CVE-2021-38002: debian debian_linux Use After Free
CVSS: 9.6v3.1CriticalModified
AliasesUBUNTU-CVE-2021-38002DEBIAN-CVE-2021-38002
Published 23-11-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-38002 is a critical (CVSS 9.6) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.4% of scored vulnerabilities.
CVSS score
9.6/10
010
Critical · v3.1 (NVD)EPSS score
0.97%
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 8 · Related 7Timeline
- 23-11-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Use after free in Web Transport in Google Chrome prior to 95.0.4638.69 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.6Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
0.97%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
0.00 pp
From 0.97% on 19-09-2026
19-09-202619-10-2026
EPSS score0.97%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- chromium< 97.0.4692.71-0.1
- debian_linuxEOL10.0 | 11.0
Fedoraproject1 product
- fedoraEOL34
Google1 product
- chrome≥ unspecified, < 95.0.4638.69 | < 95.0.4638.69
Ubuntu1 product
- chromium-browser< 95.0.4638.69-0ubuntu0.18.04.1
4 vendors · 5 products
References
7 links- chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.htmlX Refsource MISCRelease NotesVendor Advisory
