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Red Hat Security Advisory

RHSA-2023:6748

squid security update

Released 2023-11-07 · Red Hat rating Critical · View on Red Hat →

Fixed in

Fixes 3 records

Priority HIGH 77

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

CVSS 3.1HIGH 8.6 Network No auth No interaction EPSS 0.78513 Published 2023-11-03 Fixed in 6.4, 7:3.4.14-15.el6_10.1 +13 CWE-120
Priority MEDIUM 56

SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.

CVSS 3.1CRITICAL 9.3 Network No auth No interaction EPSS 0.07158 Published 2023-11-03 Partial fix · 6.4, 7:3.5.20-17.el7_9.13 +9 CWE-444
Priority MEDIUM 51

Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.

CVSS 3.1HIGH 8.6 Network No auth No interaction EPSS 0.11376 Published 2023-11-03 Fixed in 6.4, 7:5.5-5.el9_2.1 +2 CWE-681