CVE-2016-4456 — HIGH (7.5) — White Hats Nepal

Vulnerability 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

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Gnu	Gnutls	3.4.12

Related Weaknesses (CWE)

CWE-20

References

http://www.openwall.com/lists/oss-security/2016/06/07/6Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1343505Issue TrackingThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/6Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1343505Issue TrackingThird Party Advisory

FAQ

What is CVE-2016-4456?

CVE-2016-4456 is a vulnerability with a CVSS score of 7.5 (HIGH). The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.

How severe is CVE-2016-4456?

CVE-2016-4456 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-4456?

Check the references section above for vendor advisories and patch information. Affected products include: Gnu Gnutls.