NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package samba (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-SAMBA-612778
- published24 Jul 2019
- disclosed19 Jun 2019
Introduced: 19 Jun 2019
CVE-2019-12436 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-12436
- https://www.samba.org/samba/security/CVE-2019-12436.html
- https://www.synology.com/security/advisory/Synology_SA_19_27
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12436
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQ3LCJNJ3ONHIRKDSKOTT6QGXALLCHVG/
- http://www.securityfocus.com/bid/108823
- https://usn.ubuntu.com/4018-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ3LCJNJ3ONHIRKDSKOTT6QGXALLCHVG/