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Vulnerability · Published Nov 3, 2023 · Assigned by redhat

CVE-2023-46848Squid: denial of service in ftp

High 8.6

In plain English

A high-severity security flaw in squid. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 11.4% (higher than 96% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.6High
Exploit odds (30 days)11.4%top 4.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:9squid7:5.5-6.el9_3.1ALSA-2023:6748
AlmaLinux:9squid7:5.5-5.el9_2.1ALSA-2023:6266
Alpine:v3.20squid6.4-r0ALPINE-CVE-2023-46848
Alpine:v3.21squid6.4-r0ALPINE-CVE-2023-46848
Alpine:v3.22squid6.4-r0ALPINE-CVE-2023-46848
Alpine:v3.23squid6.4-r0ALPINE-CVE-2023-46848
Alpine:v3.24squid6.4-r0ALPINE-CVE-2023-46848
Debian:12squid5.7-2+deb12u1DEBIAN-CVE-2023-46848
Debian:13squid6.5-1DEBIAN-CVE-2023-46848
Debian:14squid6.5-1DEBIAN-CVE-2023-46848
Rocky Linux:9squid7:5.5-5.el9_2.1RLSA-2023:6266
Ubuntu:22.04:LTSsquid5.7-0ubuntu0.22.04.2UBUNTU-CVE-2023-46848
Ubuntu:22.04:LTSsquid5.7-0ubuntu0.22.04.2USN-6500-1

Affected products (as reported)

VendorProductVersions
squid 5.0.3 – before 6.4
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references

Weakness: CWE-681 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References