CVE-2002-2443

Home/CVE/schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP pack

CVE

schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP pack

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.

MEDIUM · CVSS 5 EPSS 0.15013

Schedule remediation

EPSS ≥ 0.10 - elevated exploitation probability
EPSS percentile: top 5% of all CVEs by exploitation likelihood

Sigma rules0 YARA rules0

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Weakness Classification

CWE-20Improper Input Validation

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Affected Products & Versions

mit kerberos 5< 1.11.3
opensuseall versions
fedoraproject fedoraall versions
redhat enterprise linux desktopall versions
redhat enterprise linux eusall versions
redhat enterprise linux serverall versions
redhat enterprise linux server ausall versions
redhat enterprise linux workstationall versions
Show all 10 affected productsdebian linuxall versions
canonical ubuntu linuxall versions

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Scoring & Timeline

MEDIUM · CVSS v2 (legacy) · cve@mitre.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Published to NVD29 May 2013 · 02:29 PM

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Vendor Advisories

suse-csafopenSUSE-SU-2024:10004-1
usnUSN-2810-1
rhsaRHSA-2013:1076Important
rhsaRHSA-2013:0942Moderate

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://krbdev.mit.edu/rt/Ticket/Display.html?id=7637Vendor Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105879.htmlThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105978.htmlThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106698.htmlThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2013-07/msg00004.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2013-07/msg00007.htmlMailing ListThird Party Advisory

Show all 12 references

http://rhn.redhat.com/errata/RHSA-2013-0942.htmlThird Party Advisory

http://www.debian.org/security/2013/dsa-2701Third Party Advisory

http://www.mandriva.com/security/advisories?name=MDVSA-2013:166Third Party Advisory

http://www.ubuntu.com/usn/USN-2810-1Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=962531Issue TrackingThird Party Advisory

https://github.com/krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322cPatchThird Party Advisory

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