Vulnerability Description
cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an off-by-one error in _sasl_add_string in common.c in cyrus-sasl.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cyrusimap | Cyrus-Sasl | < 2.1.28 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Fedoraproject | Fedora | 31 |
| Redhat | Jboss Enterprise Web Server | 2.0.0 |
| Apple | Mac Os X | 10.14.6 |
| Redhat | Enterprise Linux | 5.0 |
| Redhat | Enterprise Linux Eus | 8.4 |
| Redhat | Enterprise Linux For Ibm Z Systems | 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus | 8.4 |
| Redhat | Enterprise Linux For Power Little Endian | 8.0 |
| Redhat | Enterprise Linux For Power Little Endian Eus | 8.4 |
| Redhat | Enterprise Linux Server Aus | 8.4 |
| Redhat | Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions | 8.4 |
| Redhat | Enterprise Linux Server Tus | 8.4 |
| Redhat | Enterprise Linux Server Update Services For Sap Solutions | 8.4 |
| Apple | Ipados | 13.6 |
| Apple | Iphone Os | 13.6 |
| Apache | Bookkeeper | 4.12.1 |
| Centos | Centos | 7.0 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2020/Jul/23Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Jul/24Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2022/02/23/4Mailing ListPatchRelease Notes
- https://github.com/cyrusimap/cyrus-sasl/issues/587PatchThird Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e3
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8
- https://lists.debian.org/debian-lts-announce/2019/12/msg00027.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://seclists.org/bugtraq/2019/Dec/42Mailing ListThird Party Advisory
- https://support.apple.com/kb/HT211288Third Party Advisory
- https://support.apple.com/kb/HT211289Third Party Advisory
- https://usn.ubuntu.com/4256-1/PatchThird Party Advisory
- https://www.debian.org/security/2019/dsa-4591Third Party Advisory
- https://www.openldap.org/its/index.cgi/Incoming?id=9123ExploitThird Party Advisory
FAQ
What is CVE-2019-19906?
CVE-2019-19906 is a vulnerability with a CVSS score of 7.5 (HIGH). cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an...
How severe is CVE-2019-19906?
CVE-2019-19906 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19906?
Check the references section above for vendor advisories and patch information. Affected products include: Cyrusimap Cyrus-Sasl, Debian Debian Linux, Canonical Ubuntu Linux, Fedoraproject Fedora, Redhat Jboss Enterprise Web Server.