Assertion failure in Red Hat Enterprise Linux for x86_64 - CVE-2017-3139
Published: May 8, 2017 / Updated: May 8, 2017
Vulnerability identifier: #VU6436
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-3139
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Red Hat Inc.
Affected software:
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for x86_64
Detailed vulnerability description
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to input validation error when processing DNSSEC validation within the bind package in Red Hat Enterprise Linux 6. A remote unauthenticated attacker can send a specially crafted DNS response and trigger assertion failure.
Successful exploitation of this vulnerability may allow an attacker to perform a denial of service (DoS) attack.
How to mitigate CVE-2017-3139
Install update from vendor's website.