Vulnerability Details : CVE-2021-30632
Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Vulnerability category: Memory Corruption
CVE-2021-30632
is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Google Chromium V8 Out-of-Bounds Write Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Google Chromium V8 Engine contains an out-of-bounds write vulnerability which allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability affects web browsers that utilize Chromium, including Google Chrome and Microsoft Edge.
Added on
2021-11-03
Action due date
2021-11-17
Exploit prediction scoring system (EPSS) score for CVE-2021-30632
Probability of exploitation activity in the next 30 days: 63.03%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 97 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-30632
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
[email protected] |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
[email protected] |
CWE ids for CVE-2021-30632
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: [email protected] (Primary)
References for CVE-2021-30632
-
http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
Mailing List;Third Party Advisory
-
https://crbug.com/1247763
Permissions Required;Vendor Advisory
-
https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
Release Notes;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
Third Party Advisory
Products affected by CVE-2021-30632
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*