PT-2018-4957 · Bsd+1 · Bsd Libc+1

Published 2016-12-06 · Updated 2019-10-09 · CVE-2016-6559

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions BSD libc library (affected versions not specified)

Description The issue is related to improper bounds checking of the obuf variable in the link ntoa() function, which may allow an attacker to read or write from memory. The impact and severity depend on the method of exploit and how the library is used by applications. According to analysis, it is unlikely that applications exist that utilize link ntoa() in an exploitable manner, and there is no known proof of concept.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

CVE-2016-6559

FREEBSD-SA-16_37

Affected Products

Bsd Libc

Freebsd

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2016-6559 · Security Note
• https://freebsd.org/security/advisories/FreeBSD-SA-16:37.libc.asc · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-6559 · Vendor Advisory
• http://securitytracker.com/id/1037398 · Note
• https://kb.cert.org/vuls/id/548487 · Note
• https://securityfocus.com/bid/94694 · Note