File Overwrite Vulnerability in GnuTLS by Red Hat
CVE-2016-4456

7.5HIGH

Key Information:

Vendor

Gnu
Status
Gnutls
Vendor
CVE Published:
8 August 2017

What is CVE-2016-4456?

The GnuTLS version 3.4.12 includes a vulnerability related to the 'GNUTLS_KEYLOGFILE' environment variable, which can be exploited by remote attackers. This flaw allows malicious individuals to overwrite and corrupt arbitrary files on the filesystem, potentially leading to unauthorized access and data integrity issues. It is critical for users and administrators to address this vulnerability by applying the recommended updates to ensure system security.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1343505
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http://www.openwall.com/lists/oss-security/2016/06/07/6
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.