SB20250916257 - Improper error handling in Linux kernel x86 crypto

Description

This security bulletin contains information about 1 vulnerability.

1) Improper error handling (CVE-ID: CVE-2025-39789)

CWE-ID: CWE-388 - Error Handling

CVSSv4: 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

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling within the crypto_aegis128_aesni_process_ad(), crypto_aegis128_aesni_process_crypt(), crypto_aegis128_aesni_setauthsize(), crypto_aegis128_aesni_crypt(), crypto_aegis128_aesni_encrypt() and crypto_aegis128_aesni_decrypt() functions in arch/x86/crypto/aegis128-aesni-glue.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/3d9eb180fbe8828cce43bce4c370124685b205c3
• https://git.kernel.org/stable/c/475104178f4d30e749ee4f5473c87f692b93bebb