Privilege escalation in ALSA PCM



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-0861
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 ALSA PCM
Client/Desktop applications / File managers, FTP clients

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free error

EUVDB-ID: #VU10885

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-0861

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to use-after-free error. A local attacker can trigger memory corruption and cause the service to crash or execute arbitrary code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ALSA PCM: All versions

CPE2.3 External links

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=362bca57f5d78220f8b590...


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.



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