#VU90449 Memory leak in Linux kernel - CVE-2024-27388

Vulnerability identifier: #VU90449

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-2024-27388

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 gssx_dec_option_array() function in net/sunrpc/auth_gss/gss_rpc_xdr.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

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External links
https://git.kernel.org/stable/c/b97c37978ca825557d331c9012e0c1ddc0e42364
https://git.kernel.org/stable/c/bfa9d86d39a0fe4685f90c3529aa9bd62a9d97a8
https://git.kernel.org/stable/c/bb336cd8d5ecb69c430ebe3e7bcff68471d93fa8
https://git.kernel.org/stable/c/dd292e884c649f9b1c18af0ec75ca90b390cd044
https://git.kernel.org/stable/c/934212a623cbab851848b6de377eb476718c3e4c
https://git.kernel.org/stable/c/5e6013ae2c8d420faea553d363935f65badd32c3
https://git.kernel.org/stable/c/9806c2393cd2ab0a8e7bb9ffae02ce20e3112ec4
https://git.kernel.org/stable/c/996997d1fb2126feda550d6adcedcbd94911fc69
https://git.kernel.org/stable/c/3cfcfc102a5e57b021b786a755a38935e357797d

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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.