CVE-2016-6522
UnknownEPSS 0.45%
Last modified
CVE-2016-6522 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openbsd | 5.9 |
References
- 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.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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2016-6522?
Severity scoring for CVE-2016-6522 is pending analysis. The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6522?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2016-6522?
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