CVE-2016-4456

gnutls: Environment variable GNUTLS_KEYLOGFILE is obtained via insecure getenv()

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Severity

Moderate

Red Hat Product Security

6.3

CVSS 3.0

Review impact separately from score.

Published · June 6, 2016

Updated · May 13, 2026

Description

The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 6.3
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS 2.0 · 5.6
AV:L/AC:H/Au:N/C:N/I:C/A:C

CWE not specified