#VU104319 Memory leak in Linux kernel - CVE-2022-49627

Vulnerability identifier: #VU104319

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49627

CWE-ID: CWE-401

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 perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the crypto_free_shash() function in security/integrity/ima/ima_crypto.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/067d2521874135267e681c19d42761c601d503d6
https://git.kernel.org/stable/c/601ae26aa2802a4c10c94d7388a99eabdbefab2b
https://git.kernel.org/stable/c/830de9667b3ada0a75a3f098dfc7159709fe397b
https://git.kernel.org/stable/c/c1d9702ceb4a091da6bee380627596d1fba09274

---

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.