CVE-2016-1887
Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.11% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- freebsd/freebsd
- Source
- cve@mitre.org
References
- http://cturt.github.io/sendmsg.htmlExploit
- http://www.securitytracker.com/id/1035906
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:19.sendmsg.ascVendor Advisory
- http://cturt.github.io/sendmsg.htmlExploit
- http://www.securitytracker.com/id/1035906
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:19.sendmsg.ascVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.