Resource management error in Linux kernel include asm

1) Resource management error

EUVDB-ID: #VU93187

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-47429

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to resource management error within the die_mce() function in arch/powerpc/kernel/traps.c, within the EXC_COMMON_BEGIN() and END_FTR_SECTION_IFSET() functions in arch/powerpc/kernel/exceptions-64s.S. 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

CPE2.3

External links

http://git.kernel.org/stable/c/d7a8e38999fbd6910516e44cb43f9f4317e54f73
http://git.kernel.org/stable/c/f08fb25bc66986b0952724530a640d9970fa52c1

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.