CVE-2021-31807
high-risk
Published 2021-06-08
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
Do I need to act?
!
33.7% chance of exploitation in next 30 days
EPSS score — higher than 66% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10
Medium
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (16)
Mailing List
http://seclists.org/fulldisclosure/2023/Oct/14
Third Party Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210716-0007/
Mailing List
http://seclists.org/fulldisclosure/2023/Oct/14
Third Party Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210716-0007/
62
/ 100
high-risk
Severity
24/34 · High
Exploitability
16/34 · Moderate
Exposure
22/34 · High