Bug 1535575 (CVE-2018-5710) - CVE-2018-5710 krb5: null pointer deference in strlen function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c
Summary: CVE-2018-5710 krb5: null pointer deference in strlen function in plugins/kdb/...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-5710
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1535576
Blocks: 1535577
TreeView+ depends on / blocked
 
Reported: 2018-01-17 16:11 UTC by Laura Pardo
Modified: 2021-02-17 00:57 UTC (History)
41 users (show)

Fixed In Version:
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Last Closed: 2018-03-22 17:31:35 UTC
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Description Laura Pardo 2018-01-17 16:11:50 UTC 
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 16:13:24 UTC 
Created krb5 tracking bugs for this issue:

Affects: fedora-all [bug 1535576]
Comment 8 Doran Moppert 2020-02-10 04:37:23 UTC 
Statement:

This flaw was found to be a duplicate of CVE-2018-5729. Please see https://access.redhat.com/security/cve/CVE-2018-5729 for information about affected products and security errata.
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