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Amazon Linux 2 : pcre2 (ALAS-2022-1871)

critical Nessus Plugin ID 167235

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of pcre2 installed on the remote host is prior to 10.23-11. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1871 advisory.

 An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT. (CVE-2022-1586)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update pcre2' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2022-1871.html

https://alas.aws.amazon.com/cve/html/CVE-2022-1586.html

Plugin Details

Severity: Critical

ID: 167235

File Name: al2_ALAS-2022-1871.nasl

Version: 1.4

Type: local

Agent: unix

Published: 11/9/2022

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2022-1586

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:pcre2, p-cpe:/a:amazon:linux:pcre2-devel, p-cpe:/a:amazon:linux:pcre2-tools, p-cpe:/a:amazon:linux:pcre2-utf16, p-cpe:/a:amazon:linux:pcre2-static, p-cpe:/a:amazon:linux:pcre2-utf32, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:pcre2-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/31/2022

Vulnerability Publication Date: 5/11/2022

Reference Information

CVE: CVE-2022-1586