Improper input validation in Mit Kerberos 5
CVE-2002-2443
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.064 (93.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.064 · newest: 0.064 · change: 0.000
Affected products
- Mit Kerberos 5
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
- Debian Linux — versions 6.0, 7.0, 8.0
- Fedoraproject Fedora — versions 17, 18, 19
- openSUSE — versions 11.4, 12.2, 12.3
- Red Hat Enterprise Linux Desktop — versions 5.0, 6.0
- Red Hat Enterprise Linux Eus — versions 5.9, 6.4
- Red Hat Enterprise Linux Server — versions 5.0, 6.0
- Red Hat Enterprise Linux Server Aus — versions 6.4
- Red Hat Enterprise Linux Workstation — versions 5.0, 6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/pipermail/package-announce/2013-May/106698.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2013-07/msg00004.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2013-07/msg00007.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.debian.org/security/2013/dsa-2701 (vendor-advisory, Third Party Advisory)
- github.com/krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322c (Patch, Third Party Advisory)
- krbdev.mit.edu/rt/Ticket/Display.html (Vendor Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2013-May/105978.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2013-May/105879.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2013-0942.html (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2002-2443?
- CVE-2002-2443 is a vulnerability in Mit Kerberos 5, classified under Improper Input Validation. Published 2013-05-29.
- Is CVE-2002-2443 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.