High severity · published Dec 19, 2019
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
7.5
CVSS
8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.0% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
13.6 · source: NVD
BO
Bookkeeper · Apache
4.12.1 · source: NVD
CY
Cyrus-sasl · Cyrusimap
before 2.1.28 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
EL
Enterprise Linux · Redhat
5.0; 6.0; 7.0; 8.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.4 · source: NVD
EL
Enterprise Linux For Ibm Z Systems · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus · Redhat
8.4 · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Power Little Endian Eus · Redhat
8.4 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
8.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19906
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19906
Mailing List
http://seclists.org/fulldisclosure/2020/Jul/23
Mailing List
http://seclists.org/fulldisclosure/2020/Jul/24
Mailing List
http://www.openwall.com/lists/oss-security/2022/02/23/4
Patch
https://github.com/cyrusimap/cyrus-sasl/issues/587
lists.apache.org
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
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