CVE-2019-19344: Use After Free
Last updated 25 August 2025
Other sources
There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.
— Launchpad
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-19344?
CVE-2019-19344 is a use-after-free vulnerability in 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 severe is CVE-2019-19344?
CVE-2019-19344 has a severity score of 6.5, which is considered medium.
Which software versions are affected by CVE-2019-19344?
CVE-2019-19344 affects 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-2019-19344?
To fix CVE-2019-19344, it is recommended to update to Samba versions 4.9.18, 4.10.12, or 4.11.5.
Where can I find more information about CVE-2019-19344?
You can find more information about CVE-2019-19344 at the following references: [Bugzilla RedHat](https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344), [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20200122-0001/), [Synology Security Advisory](https://www.synology.com/security/advisory/Synology_SA_20_01).