Use-after-free in Linux kernel octeontx2 nic driver

1) Use-after-free

EUVDB-ID: #VU106160

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-53029

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 within the otx2_pool_refill_task(), otx2_sq_aura_pool_init() and otx2_rq_aura_pool_init() functions in drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/29e9c67bf3271067735c188e95cf3631ecd64d58
https://git.kernel.org/stable/c/55ba18dc62deff5910c0fa64486dea1ff20832ff
https://git.kernel.org/stable/c/659518e013d6bd562bb0f1d2d9f99d0ac54720e2

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.