Input validation error in MaraDNS - CVE-2012-0024
Published: January 8, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44412
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-0024
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Sam Trenholme
Affected software:
MaraDNS
MaraDNS
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
MaraDNS before 1.3.07.12 and 1.4.x before 1.4.08 computes hash values for DNS data without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set.
How to mitigate CVE-2012-0024
Install update from vendor's website.