Red Hat Enterprise Linux 9 update for kpatch-patch-5_14_0-570_17_1

1) Use-after-free

EUVDB-ID: #VU108240

Risk: Low

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

CVE-ID: CVE-2025-37750

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

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 SMB2_negotiate() function in fs/smb/client/smb2pdu.c, within the decrypt_raw_data() function in fs/smb/client/smb2ops.c, within the cifs_crypto_secmech_release() function in fs/smb/client/cifsencrypt.c. A local user can escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Power, little endian: 9

Red Hat Enterprise Linux for x86_64: 9

kpatch-patch-5_14_0-570_17_1 (Red Hat package): before 1-2.el9_6

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian:9:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:o:red_hat:red_hat_enterprise_linux:9:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:kpatch-patch-5_14_0-570_17_1_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2025:9393

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.