VulnerabilityModified
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.
HIGH 7.5EPSS 8.04%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.04%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 8.04% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-193, CWE-787
- Affected
- cyrusimap/cyrus-sasl · debian/debian linux · canonical/ubuntu linux · fedoraproject/fedora · redhat/jboss enterprise web server · apple/mac os x · redhat/enterprise linux · redhat/enterprise linux eus · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for ibm z systems eus · redhat/enterprise linux for power little endian · redhat/enterprise linux for power little endian eus · redhat/enterprise linux server aus · redhat/enterprise linux server for power little endian update services for sap solutions · redhat/enterprise linux server tus · redhat/enterprise linux server update services for sap solutions · apple/ipados · apple/iphone os · apache/bookkeeper
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2020/Jul/23Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Jul/24Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/02/23/4Mailing List, Patch, Release Notes, Third Party Advisory
- https://github.com/cyrusimap/cyrus-sasl/issues/587Patch, Third Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2019/12/msg00027.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MW6GZCLECGL2PBNHVNPJIX4RPVRVFR7R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OB4GSVOJ6ESHQNT5GSV63OX5D4KPSTGT/
- https://seclists.org/bugtraq/2019/Dec/42Mailing List, Third Party Advisory
- https://support.apple.com/kb/HT211288Third Party Advisory
- https://support.apple.com/kb/HT211289Third Party Advisory
- https://usn.ubuntu.com/4256-1/Patch, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4591Third Party Advisory
- https://www.openldap.org/its/index.cgi/Incoming?id=9123Exploit, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Jul/23Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Jul/24Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/02/23/4Mailing List, Patch, Release Notes, Third Party Advisory
- https://github.com/cyrusimap/cyrus-sasl/issues/587Patch, Third Party Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2019/12/msg00027.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MW6GZCLECGL2PBNHVNPJIX4RPVRVFR7R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OB4GSVOJ6ESHQNT5GSV63OX5D4KPSTGT/
- https://seclists.org/bugtraq/2019/Dec/42Mailing List, Third Party Advisory
- https://support.apple.com/kb/HT211288Third Party Advisory
- https://support.apple.com/kb/HT211289Third Party Advisory
- https://usn.ubuntu.com/4256-1/Patch, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4591Third Party Advisory
- https://www.openldap.org/its/index.cgi/Incoming?id=9123Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.