CVE-2019-14907
First published: Wed Jan 15 2020(Updated: )
All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Samba Samba | >=4.9.0<4.9.18 | |
| Samba Samba | >=4.10.0<4.10.12 | |
| Samba Samba | >=4.11.0<4.11.5 | |
| Fedoraproject Fedora | =30 | |
| Fedoraproject Fedora | =31 | |
| Redhat Storage | =3.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| Synology Directory Server | ||
| Synology DiskStation Manager | =6.2 | |
| Synology Router Manager | =1.2 | |
| Synology Skynas | ||
| Debian Debian Linux | =9.0 | |
| redhat/samba | <4.11.5 | 4.11.5 |
| redhat/samba | <4.10.12 | 4.10.12 |
| redhat/samba | <4.9.18 | 4.9.18 |
| debian/samba | 2:4.13.13+dfsg-1~deb11u6 2:4.17.12+dfsg-0+deb12u1 2:4.21.0+dfsg-1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907
- https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
- https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
- https://security.gentoo.org/glsa/202003-52
- https://security.netapp.com/advisory/ntap-20200122-0001/
- https://usn.ubuntu.com/4244-1/
- https://www.samba.org/samba/security/CVE-2019-14907.html
- https://www.synology.com/security/advisory/Synology_SA_20_01
- https://launchpad.net/bugs/cve/CVE-2019-14907
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1793407
- https://access.redhat.com/errata/RHSA-2020:0943
- https://access.redhat.com/security/cve/cve-2019-14907
- https://access.redhat.com/errata/RHSA-2020:1878
- https://access.redhat.com/errata/RHSA-2020:3981
- https://bugzilla.redhat.com/show_bug.cgi?id=1791207
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
- https://security-tracker.debian.org/tracker/CVE-2019-14907
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14907
- https://nvd.nist.gov/vuln/detail/CVE-2019-14907
- https://ubuntu.com/security/CVE-2019-14907
Frequently Asked Questions
What is CVE-2019-14907?
CVE-2019-14907 is a vulnerability in all Samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12, and 4.11.x before 4.11.5.
What is the severity of CVE-2019-14907?
The severity of CVE-2019-14907 is medium, with a CVSS score of 6.5.
Which software versions are affected by CVE-2019-14907?
CVE-2019-14907 affects all Samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12, and 4.11.x before 4.11.5.
How can I fix CVE-2019-14907?
To fix CVE-2019-14907, update to Samba versions 4.9.18, 4.10.12, or 4.11.5.
Where can I find more information about CVE-2019-14907?
You can find more information about CVE-2019-14907 in the following references: http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907, https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
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