CVE-2023-46848

Publication date 3 November 2023

Last updated 4 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
squid 23.10 mantic
Fixed 6.1-2ubuntu1.1
23.04 lunar
Fixed 5.7-1ubuntu3.1
22.04 LTS jammy
Fixed 5.7-0ubuntu0.22.04.2
20.04 LTS focal
Not affected
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
squid3 23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored end of standard support

Notes

mdeslaur

only affects 5.0.3+

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
squid

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-6500-1
    • Squid vulnerabilities
    • 21 November 2023

Other references

Access our resources on patching vulnerabilities