CVE-2023-46728
squid - security update
7.5
HIGH
CVSS 3.1
EPSS 2.3%
Description
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.
How to fix CVE-2023-46728
To remediate CVE-2023-46728, upgrade the affected package to a fixed version below.
- —upgrade to 4.13-10+deb11u5 or later
- —upgrade to 4.13-10+deb11u5 or later
Is CVE-2023-46728 being exploited?
Low — EPSS is 2.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.13-10+deb11u5
- from 0, < 4.13-10+deb11u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |