Input validation error in dbus - CVE-2002-2443
Published: May 29, 2013 / Updated: July 28, 2020
Vulnerability identifier: #VU32660
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-2002-2443
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Freedesktop.org
Affected software:
dbus
dbus
Detailed vulnerability description
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.
How to mitigate CVE-2002-2443
Install update from vendor's website.
Sources
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=7637
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105879.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105978.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106698.html
- http://lists.opensuse.org/opensuse-updates/2013-07/msg00004.html
- http://lists.opensuse.org/opensuse-updates/2013-07/msg00007.html
- http://rhn.redhat.com/errata/RHSA-2013-0942.html
- http://www.debian.org/security/2013/dsa-2701
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:166
- http://www.ubuntu.com/usn/USN-2810-1
- https://bugzilla.redhat.com/show_bug.cgi?id=962531
- https://github.com/krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322c