NULL Pointer Dereference Affecting krb5 package, versions <1.15.3-r0
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Test your applications- Snyk ID SNYK-ALPINE317-KRB5-3140022
- published 16 Jan 2018
- disclosed 16 Jan 2018
Introduced: 16 Jan 2018
CVE-2018-5710 Open this link in a new tabHow to fix?
Upgrade Alpine:3.17 krb5 to version 1.15.3-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Alpine.
See How to fix? for Alpine:3.17 relevant fixed versions and status.
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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5710
- https://security-tracker.debian.org/tracker/CVE-2018-5710
- https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Denial%20Of%20Service%28DoS%29
- https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Denial%20Of%20Service(DoS)
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-5710