CVE-2019-19906

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 v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

8.04% chance of exploitation in the next 30 days, 94th percentile

Published

2019-12-19

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://www.openldap.org/its/index.cgi/Incoming?id=9123

References

• CVE Record
• NVD entry

Related

• CVE-2019-19905
• CVE-2019-19908
• CVE-2019-19890
• CVE-2019-19912
• CVE-2019-19889
• CVE-2019-19913