PT-2017-8493 · Gnu+1 · Gnutls+1

Adam Mariš · Published 2016-06-08 · Updated 2020-06-16 · CVE-2016-4456

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions gnutls version 3.4.12

Description The issue allows remote attackers to overwrite and corrupt arbitrary files in the filesystem due to the "GNUTLS KEYLOGFILE" environment variable.

Recommendations For gnutls version 3.4.12, consider restricting access to the GNUTLS KEYLOGFILE environment variable to prevent remote attackers from overwriting arbitrary files until a patch is available.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2016-1590

CVE-2016-4456

Affected Products

Alt Linux

Gnutls

References · 9

• https://security-tracker.debian.org/tracker/CVE-2016-4456 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2016-1590 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4456 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2016-4456 · Security Note
• https://osv.dev/vulnerability/CVE-2016-4456 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-4456 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1343505 · Note
• http://openwall.com/lists/oss-security/2016/06/07/6 · Note
• https://packages.altlinux.org/ru/vuln/CVE-2016-4456 · Note