CVE-2016-4456

Impact:
Moderate
Public Date:
2016-06-06
Bugzilla:
1343505: CVE-2016-4456 gnutls: Environment variable GNUTLS_KEYLOGFILE is obtained via insecure getenv()

The MITRE CVE dictionary describes this issue as:

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

Find out more about CVE-2016-4456 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5.6
Base Metrics AV:L/AC:H/Au:N/C:N/I:C/A:C
Access Vector Local
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact Complete
Availability Impact Complete

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 6.3
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact High
Availability Impact High

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 gnutls Not affected
Red Hat Enterprise Linux 6 gnutls Not affected
Red Hat Enterprise Linux 5 gnutls Not affected
RHEV Manager 3 mingw-virt-viewer Not affected

Acknowledgements

This issue was discovered by Nikos Mavrogiannopoulos (Red Hat).

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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