SB2017080845 - Input validation error in GnuTLS
Published: August 8, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017080845
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2016-4456)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.
Remediation
Install update from vendor's website.