AI Score
Confidence
High
EPSS
Percentile
80.5%
A flaw exists in OpenBSD’s implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution using setuid binaries such as /usr/bin/at. This affects OpenBSD 6.1 and possibly earlier versions.
www.securityfocus.com/bid/99172
ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig
www.qualys.com/2017/06/19/stack-clash/stack-clash.txt