CVE-2021-31807 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patch https://lists.fedoraproject.org/archives/list/[email protected]/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/ https://lists.fedoraproject.org/archives/list/[email protected]/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/ https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html https://security.netapp.com/advisory/ntap-20210716-0007/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5