Vulnerability Details : CVE-2021-21117
Insufficient policy enforcement in Cryptohome in Google Chrome prior to 88.0.4324.96 allowed a local attacker to perform OS-level privilege escalation via a crafted file.
Vulnerability category: Gain privilege
Products affected by CVE-2021-21117
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21117
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21117
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-21117
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-21117
-
https://crbug.com/1137179
Inloggen - Google AccountsPermissions Required;Third Party Advisory
-
https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
Chrome Releases: Stable Channel Update for DesktopRelease Notes;Vendor Advisory
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