Medium severity · published Jun 19, 2019
CVE-2019-12436
Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service
6.5
CVSS
2.8%
EPSS
No
On KEV
Description
Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service. This is related to an attacker using the paged search control. The attacker must have directory read access in order to attempt an exploit.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Samba · Samba
4.10.0 before 4.10.5 · source: NVD
UL
Ubuntu Linux · Canonical
19.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12436
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-12436
www.securityfocus.com
http://www.securityfocus.com/bid/108823
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ3LCJNJ3ONHIRKDSKOTT6QGXALLCHVG/
Third Party Advisory
https://usn.ubuntu.com/4018-1/
Vendor Advisory
https://www.samba.org/samba/security/CVE-2019-12436.html
www.synology.com
https://www.synology.com/security/advisory/Synology_SA_19_27
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