Vulnerability Details CVE-2016-6522
Integer overflow in the uvm_map_isavail function in uvm/uvm_map.c in OpenBSD 5.9 allows local users to cause a denial of service (kernel panic) via a crafted mmap call, which triggers the new mapping to overlap with an existing mapping.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.3%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 4.9
References
- http://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/023_uvmisavail.patch.sig
- http://www.openwall.com/lists/oss-security/2016/08/02/12
- http://www.openwall.com/lists/oss-security/2016/08/02/8
- http://www.securityfocus.com/bid/92264
- http://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/023_uvmisavail.patch.sig
- http://www.openwall.com/lists/oss-security/2016/08/02/12
- http://www.openwall.com/lists/oss-security/2016/08/02/8
- http://www.securityfocus.com/bid/92264