CVE-2003-0138

Description

Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.

7.5

CVSS

Severity: High

CVSS 2.0 •

EPSS 5.64% Top 15%

Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory mit.edu

Affected: n/a n/a

References

Link	Tags
http://www.debian.org/security/2003/dsa-269	vendor advisory
http://www.redhat.com/support/errata/RHSA-2003-052.html	vendor advisory
http://www.securityfocus.com/archive/1/316960/30/25250/threaded	mailing list
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt	patch vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A248	vdb entry signature
http://www.redhat.com/support/errata/RHSA-2003-091.html	vendor advisory
http://www.debian.org/security/2003/dsa-273	vendor advisory
http://www.redhat.com/support/errata/RHSA-2003-051.html	vendor advisory
http://www.kb.cert.org/vuls/id/623217	us government resource third party advisory patch
http://www.debian.org/security/2003/dsa-266	patch vendor advisory
http://marc.info/?l=bugtraq&m=104791775804776&w=2	mailing list
http://www.securityfocus.com/bid/7113	vdb entry

Frequently Asked Questions

What is the severity of CVE-2003-0138?: CVE-2003-0138 has been scored as a high severity vulnerability.
How to fix CVE-2003-0138?: To fix CVE-2003-0138, 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-2003-0138 being actively exploited in the wild?: It is possible that CVE-2003-0138 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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