CVE-2023-46728: SQUID-2021:8 Denial of Service in Gopher gateway
Published Nov 6, 2023
·Updated
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.
Affected Software
9 affected componentsFixes available
ubuntu/squid<4.10-1ubuntu1.8
4.10-1ubuntu1.8
ubuntu/squid<5.7-0ubuntu0.22.04.2
5.7-0ubuntu0.22.04.2
ubuntu/squid<5.7-1ubuntu3.1
5.7-1ubuntu3.1
ubuntu/squid<6.1-1
6.1-1
ubuntu/squid3<3.5.27-1ubuntu1.14+
3.5.27-1ubuntu1.14+
ubuntu/squid3<3.5.12-1ubuntu7.16+
3.5.12-1ubuntu7.16+
redhat/squid<6.0.1
6.0.1
debian/squid<=4.6-1+deb10u7, <=4.6-1+deb10u10, <=4.13-10+deb11u2, <=4.13-10+deb11u3, <=5.7-2, <=5.7-2+deb12u1
6.9-1
Squid-Cache Squid<6.0.1
Remediation
Event History
Nov 6, 2023
CVE Published
via Ubuntu·12:00 AM
CVE Published
via MITRE·05:13 PM
Data Sourced
via MITRE·05:13 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·01:29 PM
Description