CVE-2023-46847

squid: Denial of Service in HTTP Digest Authentication

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Severity

Critical

Red Hat Product Security

8.6

CVSS 3.1

Review impact separately from score.

Published · October 19, 2023

Updated · August 7, 2026

Description

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 8.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')