Buffer overflow in fwknop - CVE-2012-4436
Published: October 23, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43386
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-4436
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: www.cipherdyne.org
Affected software:
fwknop
fwknop
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.
How to mitigate CVE-2012-4436
Install update from vendor's website.