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 |
| ubuntu/samba | <2:4.7.6+dfsg~ubuntu-0ubuntu2.15 | 2:4.7.6+dfsg~ubuntu-0ubuntu2.15 |
| ubuntu/samba | <2:4.10.0+dfsg-0ubuntu2.8 | 2:4.10.0+dfsg-0ubuntu2.8 |
| ubuntu/samba | <2:4.10.7+dfsg-0ubuntu2.4 | 2:4.10.7+dfsg-0ubuntu2.4 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| ubuntu/samba | <4.11.5<4.10.12 | 4.11.5 4.10.12 |
| ubuntu/samba | <2:4.3.11+dfsg-0ubuntu0.16.04.25 | 2:4.3.11+dfsg-0ubuntu0.16.04.25 |
| ubuntu/samba | <2:4.11.5+dfsg-1ubuntu1 | 2:4.11.5+dfsg-1ubuntu1 |
| debian/samba | <=2:4.9.5+dfsg-5+deb10u3 | 2:4.9.5+dfsg-5+deb10u4 2:4.13.13+dfsg-1~deb11u5 2:4.17.12+dfsg-0+deb12u1 2:4.19.5+dfsg-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907
- https://security.netapp.com/advisory/ntap-20200122-0001/
- https://www.synology.com/security/advisory/Synology_SA_20_01
- https://www.samba.org/samba/security/CVE-2019-14907.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
- https://usn.ubuntu.com/4244-1/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
- https://security.gentoo.org/glsa/202003-52
- https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
- https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
- https://launchpad.net/bugs/cve/CVE-2019-14907
- 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://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://security-tracker.debian.org/tracker/CVE-2019-14907
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14907
- https://ubuntu.com/security/notices/USN-4244-1
- 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
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/type
- agent/weakness
- collector/launchpad-cve
- source/Launchpad
- collector/nvd-api
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- collector/nvd-index
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2019-14907
- collector/security-tracker-debian
- source/Debian
- collector/usn-cve
- source/Ubuntu
- vendor/samba
- canonical/samba samba
- version/samba samba/4.9.0
- version/samba samba/4.10.0
- version/samba samba/4.11.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/30
- version/fedoraproject fedora/31
- vendor/redhat
- canonical/redhat storage
- version/redhat storage/3.0
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/8.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/19.04
- version/canonical ubuntu linux/19.10
- vendor/synology
- canonical/synology directory server
- canonical/synology diskstation manager
- version/synology diskstation manager/6.2
- canonical/synology router manager
- version/synology router manager/1.2
- canonical/synology skynas
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- package-manager/redhat
- package-manager/debian
- package-manager/ubuntu