CVE-2016-7916

low-risk

Published 2016-11-16

Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Linux Kernel

Affected Vendors

Linux

References (18)

Issue Tracking http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a7...

Third Party Advisory http://source.android.com/security/bulletin/2016-11-01.html

Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4

Third Party Advisory http://www.securityfocus.com/bid/94138

http://www.ubuntu.com/usn/USN-3159-1

http://www.ubuntu.com/usn/USN-3159-2

Issue Tracking https://bugzilla.kernel.org/show_bug.cgi?id=116461

Issue Tracking https://forums.grsecurity.net/viewtopic.php?f=3&t=4363

Issue Tracking https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b...