VulnerabilityModified
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.
MEDIUM 5.5EPSS 0.45%
Does this matter?
Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.45% probability · 38th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- openbsd/openbsd
- Source
- cve@mitre.org
References
- http://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/023_uvmisavail.patch.sigPatch
- http://www.openwall.com/lists/oss-security/2016/08/02/12Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/02/8Exploit, Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/92264
- http://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/023_uvmisavail.patch.sigPatch
- http://www.openwall.com/lists/oss-security/2016/08/02/12Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/02/8Exploit, Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/92264
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.