CVE-2023-46728CWE-476

SQUID-2021:8 Denial of Service in Gopher gateway

High · published November 6, 2023

CVSS v3.1
7.5
EPSS
6%
Percentile
93.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.05955 · 93.3th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2023-11-06T17:13Z
EPSS history
Timeline
  • 06 NOV 17:13Z
    SQUID-2021:8 Denial of Service in Gopher gateway
    cvelistv5