#VU90172 Use-after-free in Linux kernel - CVE-2022-48697
Vulnerability identifier: #VU90172
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-2022-48697
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 __nvmet_req_complete() function in drivers/nvme/target/core.c. A local user can escalate privileges on the system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: All versions
External links
https://git.kernel.org/stable/c/17f121ca3ec6be0fb32d77c7f65362934a38cc8e
https://git.kernel.org/stable/c/8d66989b5f7bb28bba2f8e1e2ffc8bfef4a10717
https://git.kernel.org/stable/c/be01f1c988757b95f11f090a9f491365670a522b
https://git.kernel.org/stable/c/ebf46da50beb78066674354ad650606a467e33fa
https://git.kernel.org/stable/c/4484ce97a78171668c402e0c45db7f760aea8060
https://git.kernel.org/stable/c/6a02a61e81c231cc5c680c5dbf8665275147ac52
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.
