Multiple vulnerabilities in IBM AIX

Published: 2024-08-27

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-2511 CVE-2024-0727
CWE-ID	CWE-400 CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	IBM AIX Operating systems & Components / Operating system
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU88211

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-2511

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 unbounded memory growth when processing TLSv1.3 sessions. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that the non-default SSL_OP_NO_TICKET option is being used in TLSv1.3.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM AIX: 7.2 - 7.3.2 SP02

CPE2.3

External links

https://www.ibm.com/support/pages/node/7160457

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) NULL pointer dereference

EUVDB-ID: #VU85808