Input validation error in dbus - CVE-2002-2443

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU32660

Input validation error in dbus - CVE-2002-2443

Published: May 29, 2013 / Updated: July 28, 2020


Vulnerability identifier: #VU32660
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2002-2443
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP packets before sending responses, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged packet that triggers a communication loop, as demonstrated by krb_pingpong.nasl, a related issue to CVE-1999-0103.


Affected software

dbus
Amazon Linux AMI
Gentoo Linux
dbus (Alpine package)
krb5 (Alpine package)
perl-net-ssleay (Alpine package)

How to mitigate CVE-2002-2443

Install update from vendor's website.

krb5 (Alpine package) - update to 1.11.2-r2
perl-net-ssleay (Alpine package) - update to 1.55-r1

External References

Related Security Bulletins