RHEL 7 : squid (RHSA-2020:2040)

critical Nessus Plugin ID 136352

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2040 advisory.

- squid: improper check for new member in ESIExpression::Evaluate allows for stack buffer overflow (CVE-2019-12519)

- squid: parsing of header Proxy-Authentication leads to memory corruption (CVE-2019-12525)

- squid: improper access restriction upon Digest Authentication nonce replay could lead to remote code execution (CVE-2020-11945)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected squid, squid-migration-script and / or squid-sysvinit packages.

See Also

https://access.redhat.com/security/cve/CVE-2019-12519

https://access.redhat.com/security/cve/CVE-2019-12525

https://access.redhat.com/security/cve/CVE-2020-11945

https://access.redhat.com/errata/RHSA-2020:2040

https://bugzilla.redhat.com/1730535

https://bugzilla.redhat.com/1827552

https://bugzilla.redhat.com/1827563

Plugin Details

Severity: Critical

ID: 136352

File Name: redhat-RHSA-2020-2040.nasl

Version: 1.8

Type: local

Agent: unix

Published: 5/6/2020

Updated: 5/25/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-11945

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:squid, p-cpe:/a:redhat:enterprise_linux:squid-migration-script, p-cpe:/a:redhat:enterprise_linux:squid-sysvinit

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/6/2020

Vulnerability Publication Date: 7/11/2019

Reference Information

CVE: CVE-2019-12519, CVE-2019-12525, CVE-2020-11945

BID: 109382

CWE: 119, 121, 284

RHSA: 2020:2040