CVE-2017-1000365

Source
Severity Medium
Remote No
Type Insufficient validation
Description
The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but does not take the argument and environment pointers into account, which allows attackers to bypass this limitation. This affects Linux Kernel versions 4.11.5 and earlier. It appears that this feature was introduced in the Linux Kernel version 2.6.23.
Group Package Affected Fixed Severity Status Ticket
AVG-312 linux-lts 4.9.33-1 Medium Vulnerable
AVG-323 linux 4.11.6-3 4.12.1-1 Medium Fixed
AVG-321 linux-hardened 4.11.6.d-1 4.15.15.a-1 Medium Fixed
AVG-311 linux-zen 4.11.6-3 4.14-1 Medium Fixed
References
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=98da7d08850fb8bdeb395d6368ed15753304aa0c
Notes
Fixed in v4.12