CVE-2021-31808
moderate-risk
Published 2021-05-27
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.
Do I need to act?
-
0.33% 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
6
CVSS 6.5/10
Medium
NETWORK
/ LOW complexity
Affected Products (6)
Affected Vendors
References (18)
Mailing List
http://seclists.org/fulldisclosure/2023/Oct/14
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210716-0007/
Third Party Advisory
https://www.debian.org/security/2021/dsa-4924
Mailing List
http://seclists.org/fulldisclosure/2023/Oct/14
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210716-0007/
Third Party Advisory
https://www.debian.org/security/2021/dsa-4924
38
/ 100
moderate-risk
Severity
24/34 · High
Exploitability
1/34 · Minimal
Exposure
13/34 · Low