#VU10718 Information disclosure in Linux kernel - CVE-2017-14140

Vulnerability identifier: #VU10718

Vulnerability risk: Low

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

CVE-ID: CVE-2017-14140

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists in mm/migrate.c due to improper check of the effective UID. A local attacker can learn the memory layout of a setuid executable despite ASLR and expose sensitive information.

Mitigation
Update to version 4.12.9.

Vulnerable software versions

Linux kernel: 4.12.1 - 4.12.8

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External links
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e5851...

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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.