Amazon Linux 2023 : pcre2, pcre2-devel, pcre2-static (ALAS2023-2023-045)

critical Nessus Plugin ID 173161


The remote Amazon Linux 2023 host is missing a security update.


It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-045 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)

- An out-of-bounds read vulnerability was discovered in the PCRE2 library in the get_recurse_data_length() function of the pcre2_jit_compile.c file. This issue affects recursions in JIT-compiled regular expressions caused by duplicate data transfers. (CVE-2022-1587)

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


Run 'dnf update pcre2 --releasever=2023.0.20230222 ' to update your system.

See Also

Plugin Details

Severity: Critical

ID: 173161

File Name: al2023_ALAS2023-2023-045.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/21/2023

Updated: 4/20/2023

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

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.3

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

CVSS Score Source: CVE-2022-1587


Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.4

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:F/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:pcre2, p-cpe:/a:amazon:linux:pcre2-debuginfo, p-cpe:/a:amazon:linux:pcre2-debugsource, p-cpe:/a:amazon:linux:pcre2-devel, p-cpe:/a:amazon:linux:pcre2-static, p-cpe:/a:amazon:linux:pcre2-syntax, p-cpe:/a:amazon:linux:pcre2-tools, p-cpe:/a:amazon:linux:pcre2-tools-debuginfo, p-cpe:/a:amazon:linux:pcre2-utf16, p-cpe:/a:amazon:linux:pcre2-utf16-debuginfo, p-cpe:/a:amazon:linux:pcre2-utf32, p-cpe:/a:amazon:linux:pcre2-utf32-debuginfo, cpe:/o:amazon:linux:2023

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: 2/17/2023

Vulnerability Publication Date: 5/11/2022

Reference Information

CVE: CVE-2022-1586, CVE-2022-1587