Tracker / CVE-2017-1000371
CVE-2017-1000371
High 7.8
The offset2lib patch as used by the Linux Kernel contains a vulnerability, if RLIMIT_STACK is set to RLIM_INFINITY and 1 Gigabyte of memory is allocated (the maximum under the 1/4 restriction) then the stack will be grown down to 0x80000000, and as the PIE binary is mapped above 0x80000000 the minimum distance between the end of the PIE binary's read-write segment and the start of the stack becomes small enough that the stack guard page can be jumped over by an attacker. This affects Linux Kernel version 4.11.5. This is a different issue than CVE-2017-1000370 and CVE-2017-1000365. This issue appears to be limited to i386 based systems.
Affected products and versions
| linux | linux_kernel · 4.1 → 4.1.43 |
|---|---|
| linux | linux_kernel · 4.10 → 4.11.12 |
| linux | linux_kernel · 4.12 → 4.12.3 |
| linux | linux_kernel · 4.2 → 4.4.78 |
| linux | linux_kernel · 4.5 → 4.9.39 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.