An issue was discovered in the size of the default stack guard page on PAX Linux (originally from GRSecurity but shipped by other Linux vendors), specifically the default stack guard page is not sufficiently large and can be "jumped" over (the stack guard page is bypassed), this affects PAX Linux Kernel versions as of June 19, 2017 (specific version information is not available at this time).
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt | third party advisory |
| https://access.redhat.com/security/cve/CVE-2017-1000377 | broken link |
| http://www.securityfocus.com/bid/99129 | vdb entry third party advisory |