#VU106172 Use-after-free in Linux kernel - CVE-2023-52974

Vulnerability identifier: #VU106172

Vulnerability 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-2023-52974

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

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 iscsi_sw_tcp_host_get_param() and iscsi_sw_tcp_session_create() functions in drivers/scsi/iscsi_tcp.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/0aaabdb900c7415caa2006ef580322f7eac5f6b6
https://git.kernel.org/stable/c/496af9d3682ed4c28fb734342a09e6cc0c056ea4
https://git.kernel.org/stable/c/61e43ebfd243bcbad11be26bd921723027b77441
https://git.kernel.org/stable/c/6abd4698f4c8a78e7bbfc421205c060c199554a0
https://git.kernel.org/stable/c/9758ffe1c07b86aefd7ca8e40d9a461293427ca0
https://git.kernel.org/stable/c/d4d765f4761f9e3a2d62992f825aeee593bcb6b9
https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3

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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.