CVE-2021-4057

moderate-risk
Published 2021-12-23

Use after free in file API in Google Chrome prior to 96.0.4664.93 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page.

Do I need to act?

~
3.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

Debian Google Fedoraproject

References (12)

Third Party Advisory http://packetstormsecurity.com/files/165486/Chrome-storage-BlobURLStoreImpl-Revo...
Vendor Advisory https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop....
Permissions Required https://crbug.com/1262183
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202208-25
Third Party Advisory https://www.debian.org/security/2022/dsa-5046
Third Party Advisory http://packetstormsecurity.com/files/165486/Chrome-storage-BlobURLStoreImpl-Revo...
Vendor Advisory https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop....
Permissions Required https://crbug.com/1262183
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202208-25
Third Party Advisory https://www.debian.org/security/2022/dsa-5046
46
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 10/34 · Low