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prionPRIOn knowledge basePRION:CVE-2023-46728
HistoryNov 06, 2023 - 6:15 p.m.

Null pointer dereference

2023-11-0618:15:00
PRIOn knowledge base
www.prio-n.com
6
squid
caching proxy
vulnerability
gopher
null pointer
denial of service
upgrade

6.9 Medium

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.8%

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid’s Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.

CPENameOperatorVersion
squidlt6.0.1