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Test ID:1.3.6.1.4.1.25623.1.0.142632
Category:Denial of Service
Title:Squid Security Update Advisory SQUID-2018:3
Summary:Squid is prone to a denial of service vulnerability due to incorrect buffer; management when processing HTTP Digest Authentication credentials.
Description:Summary:
Squid is prone to a denial of service vulnerability due to incorrect buffer
management when processing HTTP Digest Authentication credentials.

Vulnerability Insight:
Due to incorrect input validation the HTTP Request header parser for Digest
authentication may access memory outside the allocated memory buffer.

On systems with memory access protections this can result in the Squid process being terminated unexpectedly.
Resulting in a denial of service for all clients using the proxy.

Affected Software/OS:
Squid versions 3.3.9 - 3.5.28 and 4.x - 4.7.

Solution:
Update to version 4.8 or later.

CVSS Score:
7.5

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-12525
Bugtraq: 20190825 [SECURITY] [DSA 4507-1] squid security update (Google Search)
https://seclists.org/bugtraq/2019/Aug/42
Debian Security Information: DSA-4507 (Google Search)
https://www.debian.org/security/2019/dsa-4507
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/
https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
SuSE Security Announcement: openSUSE-SU-2019:2540 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html
SuSE Security Announcement: openSUSE-SU-2019:2541 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
https://usn.ubuntu.com/4065-1/
https://usn.ubuntu.com/4065-2/
CopyrightCopyright (C) 2019 Greenbone Networks GmbH

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