REDHAT-BUG-1452543
First published: Fri May 19 2017(Updated: )
A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the heap/stack gap, cause controlled memory corruption on process stack or heap, and thus increase their privileges on the system. This is a tracking bug for the glibc part of the mitigation.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library |
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Reference Links
- https://access.redhat.com/security/vulnerabilities/stackguard
- https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1462820
- https://access.redhat.com/errata/RHSA-2017:1481
- https://access.redhat.com/errata/RHSA-2017:1480
- https://access.redhat.com/errata/RHSA-2017:1479
- https://access.redhat.com/errata/RHSA-2017:1567
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-1000364
- https://bugzilla.redhat.com/show_bug.cgi?id=1452543
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