NULL pointer dereference in Samba
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. This is related to an attacker using the paged search control. The attacker must have directory read access in order to attempt an exploit.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Samba
- Canonical Ubuntu Linux — versions 19.04
Weakness classification (CWE)
References
- www.samba.org/samba/security/CVE-2019-12436.html (Vendor Advisory)
- usn.ubuntu.com/4018-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/108823 (vdb-entry)
- www.synology.com/security/advisory/Synology_SA_19_27
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2019-12436?
- CVE-2019-12436 is a medium-severity vulnerability in Samba, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2019-06-19.
- How severe is CVE-2019-12436?
- Medium severity. CVSS v3 base score is 6.5 out of 10.