CVE-2017-1000370

Source
Severity Medium
Remote No
Type Access restriction bypass
Description
The offset2lib patch as used in the Linux Kernel contains a vulnerability that allows a PIE binary to be execve()'ed with 1GB of arguments or environmental strings then the stack occupies the address 0x80000000 and the PIE binary is mapped above 0x40000000 nullifying the protection of the offset2lib patch. This affects Linux Kernel version 4.11.5 and earlier. This is a different issue than CVE-2017-1000371. This issue appears to be limited to i386 based systems.
Group Package Affected Fixed Severity Status Ticket
AVG-312 linux-lts 4.9.33-1 Medium Vulnerable
AVG-320 linux-hardened 4.11.6.b-1 Medium Not affected
References
https://cybersecurity.upv.es/solutions/aslrv2/fix_offset2lib.patch
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
Notes
This issue appears to be limited to i386 based systems.