CVE-2021-41816
moderate-risk
Published 2022-02-06
CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.
Do I need to act?
-
0.48% chance of exploitation
EPSS score — low 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
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Vendors
References (14)
Permissions Required
https://hackerone.com/reports/1328463
Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-41816
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220303-0006/
Permissions Required
https://hackerone.com/reports/1328463
Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-41816
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220303-0006/
43
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
2/34 · Minimal
Exposure
9/34 · Low