CVE-2018-5710 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 i...
MediumCVSS 6.5
EPSS 1.8%
- Published
- Updated
- Exploit status
- No public exploit known
Description
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/krb5(Debian:12) | < 1.16.1-1 | 1.16.1-1 |
| debian/krb5(Debian:13) | < 1.16.1-1 | 1.16.1-1 |
| debian/krb5(Debian:14) | < 1.16.1-1 | 1.16.1-1 |
| mit kerberos | <= 5-1.16 | No fix listed |
| alpine/krb5(Alpine:v3.10) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.11) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.12) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.13) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.14) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.15) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.16) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.17) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.18) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.19) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.20) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.21) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.22) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.23) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.24) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.7) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.8) | < 1.15.3-r0 | 1.15.3-r0 |
| alpine/krb5(Alpine:v3.9) | < 1.15.3-r0 | 1.15.3-r0 |
References
- Debian Security Tracker CVE-2018-5710 vendor-advisory
- github.com
- security.alpinelinux.org vendor-advisory
- bugs.debian.org issue-tracking