Linux kernel vulnerability in F5 Traffix SDC

1) Use-after-free

EUVDB-ID: #VU81693

Risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-4921

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the qfq_dequeue() function within the the Linux kernel's net/sched: sch_qfq component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Traffix SDC: 5.1.0 - 5.2.5

CPE2.3

• cpe:2.3:a:f5_networks:traffix_sdc:5.2.5:*:*:*:*:*:*:
• cpe:2.3:a:f5_networks:traffix_sdc:5.2.4:*:*:*:*:*:*:
• cpe:2.3:a:f5_networks:traffix_sdc:5.2.3:*:*:*:*:*:*:

External links

http://my.f5.com/manage/s/article/K000140864

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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