CVE-2002-2443

Description

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 23.62% Top 5%
Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory mandriva.com Vendor Advisory mit.edu
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106698.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-updates/2013-07/msg00004.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-updates/2013-07/msg00007.html mailing list third party advisory vendor advisory
http://www.debian.org/security/2013/dsa-2701 third party advisory vendor advisory
https://github.com/krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322c third party advisory patch
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7637 vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105978.html third party advisory vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105879.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-0942.html third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=962531 issue tracking third party advisory
http://www.ubuntu.com/usn/USN-2810-1 third party advisory vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:166 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2002-2443?
CVE-2002-2443 has been scored as a medium severity vulnerability.
How to fix CVE-2002-2443?
To fix CVE-2002-2443, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2002-2443 being actively exploited in the wild?
It is possible that CVE-2002-2443 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~24% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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