CVE-2019-12435: Null Pointer Dereference
First published: Wed Jun 19 2019(Updated: )
Samba 4.9.x before 4.9.9 and 4.10.x before 4.10.5 has a NULL pointer dereference, leading to Denial of Service. This is related to the AD DC DNS management server (dnsserver) RPC server process.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Samba Samba | >=4.9.0<4.9.9 | |
| Samba Samba | >=4.10.0<4.10.5 | |
| ubuntu/samba | <2:4.10.0+dfsg-0ubuntu2.2 | 2:4.10.0+dfsg-0ubuntu2.2 |
| ubuntu/samba | <4.9.10 | 4.9.10 |
| debian/samba | 2:4.13.13+dfsg-1~deb11u6 2:4.17.12+dfsg-0+deb12u1 2:4.21.0~rc1+really4.20.4+dfsg-1 2:4.21.0+dfsg-1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00023.html
- http://www.securityfocus.com/bid/108825
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QSG3TLPZP35RH5DWAIDC7MHXRK5DFKOE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQ3LCJNJ3ONHIRKDSKOTT6QGXALLCHVG/
- https://usn.ubuntu.com/4018-1/
- https://www.samba.org/samba/security/CVE-2019-12435.html
- https://www.synology.com/security/advisory/Synology_SA_19_27
- https://launchpad.net/bugs/cve/CVE-2019-12435
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QSG3TLPZP35RH5DWAIDC7MHXRK5DFKOE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ3LCJNJ3ONHIRKDSKOTT6QGXALLCHVG/
- https://security-tracker.debian.org/tracker/CVE-2019-12435
- https://ubuntu.com/security/notices/USN-4018-1
- https://www.cve.org/CVERecord?id=CVE-2019-12435
- https://nvd.nist.gov/vuln/detail/CVE-2019-12435
- https://ubuntu.com/security/CVE-2019-12435
Frequently Asked Questions
What is CVE-2019-12435?
CVE-2019-12435 is a vulnerability in Samba 4.9.x before 4.9.9 and 4.10.x before 4.10.5 that allows for a NULL pointer dereference, leading to denial of service.
What is the severity of CVE-2019-12435?
The severity of CVE-2019-12435 is medium (6.5).
How does CVE-2019-12435 affect Samba?
CVE-2019-12435 affects Samba versions 4.9.x before 4.9.9 and 4.10.x before 4.10.5, specifically the AD DC DNS management server (dnsserver) RPC server process.
How can I fix CVE-2019-12435?
To fix CVE-2019-12435, update Samba to version 4.9.10 or higher for Samba 4.9.x, and version 4.10.6 or higher for Samba 4.10.x.
Where can I find more information about CVE-2019-12435?
You can find more information about CVE-2019-12435 in these references: [Link 1](http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00023.html), [Link 2](http://www.securityfocus.com/bid/108825), [Link 3](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QSG3TLPZP35RH5DWAIDC7MHXRK5DFKOE/).
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