CVE-2014-0998

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-02-02 · updated 2026-06-17
Weakness: CWE-189

Description

Integer signedness error in the vt console driver (formerly Newcons) in FreeBSD 9.3 before p10 and 10.1 before p6 allows local users to cause a denial of service (crash) and possibly gain privileges via a negative value in a VT_WAITACTIVE ioctl call, which triggers an array index error and out-of-bounds kernel memory access.

Affected products

FreeBSD: 10.1

References

http://seclists.org/fulldisclosure/2015/Jan/107
http://www.coresecurity.com/advisories/freebsd-kernel-multiple-vulnerabilities
http://www.securityfocus.com/archive/1/534563/100/0/threaded
https://www.freebsd.org/security/advisories/FreeBSD-EN-15:01.vt.asc
http://seclists.org/fulldisclosure/2015/Jan/107
http://www.coresecurity.com/advisories/freebsd-kernel-multiple-vulnerabilities
http://www.securityfocus.com/archive/1/534563/100/0/threaded
https://www.freebsd.org/security/advisories/FreeBSD-EN-15:01.vt.asc

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