Security Bulletin
This security bulletin contains information about 11 vulnerabilities.
1) Resource exhaustion
EUVDB-ID: #VU55102
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2021-35065
CWE-ID: CWE-400 - Resource exhaustion
Exploit availability: No
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing regular expressions. A remote attacker can trigger resource exhaustion and perform a regular expression denial of service (ReDoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4
Red Hat Enterprise Linux Server - TUS: 8.4
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.4
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 8.4
Red Hat Enterprise Linux Server - AUS: 8.4
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.4
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 8.4
CPE2.3
External links
http://access.redhat.com/errata/RHSA-2023:1533
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
2) Resource exhaustion
EUVDB-ID: #VU64030
Risk: High
CVSSv3.1:
CVE-ID: CVE-2021 ..
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