Red Hat Enterprise Linux 9.2 Extended Update Support update for python3.9



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-27043
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Red Hat Enterprise Linux Server - AUS
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 Power, little endian - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

python3.9 (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU82980

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-27043

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass filtration.

The vulnerability exists due to insufficient validation of user-supplied input when parsing email address with a special character. A remote attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

python3.9 (Red Hat package): before 3.9.16-1.el9_2.3

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2024:0454


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.



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