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Bug 1535575 - (CVE-2018-5710) CVE-2018-5710 krb5: null pointer deference in strlen function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c
CVE-2018-5710 krb5: null pointer deference in strlen function in plugins/kdb/...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20180115,repor...
: Security
Depends On: 1535576
Blocks: 1535577
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Reported: 2018-01-17 11:11 EST by Laura Pardo
Modified: 2018-04-24 01:00 EDT (History)
41 users (show)

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Last Closed: 2018-03-22 13:31:35 EDT
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Description Laura Pardo 2018-01-17 11:11:50 EST 
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is getting a "NULL" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.

References:
https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Denial%20Of%20Service%28DoS%29
Comment 1 Laura Pardo 2018-01-17 11:13:24 EST 
Created krb5 tracking bugs for this issue:

Affects: fedora-all [bug 1535576]
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