Buffer overflow in FreeBSD
CVE-2016-1885
Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1 before p31, and 10.2 before p14 allows local users to cause a denial of service (kernel panic) via an i386_set_ldt system call, which triggers a heap-based buffer overflow.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- FreeBSD — versions 9.3, 10.1, 10.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/39570/ (Exploit, exploit)
- security.FreeBSD.org/advisories/FreeBSD-SA-16:15.sysarch.asc (vendor-advisory, Vendor Advisory)
- www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow
- seclists.org/fulldisclosure/2016/Mar/56 (mailing-list)
- seclists.org/fulldisclosure/2016/Mar/67 (mailing-list)
- www.securitytracker.com/id/1035309 (vdb-entry)
- www.securityfocus.com/archive/1/537813/100/0/threaded (mailing-list)
- www.securityfocus.com/archive/1/537812/100/0/threaded (mailing-list)
- packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow… (Exploit)
Frequently asked questions
- What is CVE-2016-1885?
- CVE-2016-1885 is a medium-severity vulnerability in FreeBSD, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.2/10. Published 2016-04-12.
- How severe is CVE-2016-1885?
- Medium severity. CVSS v3 base score is 6.2 out of 10.
- Is CVE-2016-1885 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.