CVE-2019-14907
What it is
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).
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of service disruption.
- Exploit odds
- 3.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.2% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.2% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Modified
Affected
- Samba < 4.9.18
- Samba < 4.10.12
- Samba < 4.11.5
- Fedoraproject Fedora 30
- Fedoraproject Fedora 31
- Redhat Storage 3.0
- Redhat Enterprise Linux 7.0
- Redhat Enterprise Linux 8.0
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-14907.md and follow it. Check whether this project is affected by CVE-2019-14907. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.samba.org/samba/security/CVE-2019-14907.html
- https://www.samba.org/samba/security/CVE-2019-14907.html
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
- https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
- 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.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
- 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%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.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