Red Hat Enterprise Linux 9 update for pcre2

Published: 2022-07-01

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-1586 CVE-2022-1587
CWE-ID	CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component pcre2 (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux for ARM 64 - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for ARM 64 Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems Operating systems & Components / Operating system Red Hat Enterprise Linux for x86_64 - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for x86_64 Operating systems & Components / Operating system
Vendor	Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU63945

Risk: Medium

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-1586

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary condition in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. A remote attacker can pass specially crafted data to the application, trigger out-of-bounds read error, gain access to sensitive information or perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.0

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.0

Red Hat Enterprise Linux for ARM 64: 9

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.0

Red Hat Enterprise Linux for Power, little endian: 9

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.0

Red Hat Enterprise Linux for IBM z Systems: 9

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.0

Red Hat Enterprise Linux for x86_64: 9

pcre2 (Red Hat package): before 10.37-5.el9_0

CPE2.3

External links

https://access.redhat.com/errata/RHSA-2022:5251

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU65553