Description
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.
References (10)
Core 10
Core References
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/4244-1/
Third Party Advisory vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202003-52
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0001/
Vendor Advisory
https://www.samba.org/samba/security/CVE-2019-19344.html
Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_01
Scores
CVSS v3
6.5
EPSS
0.0219
EPSS Percentile
84.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-416
Status
published
Products (10)
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
19.04
canonical/ubuntu_linux
19.10
opensuse/leap
15.1
samba/samba
4.9.0 - 4.9.18
synology/directory_server
synology/diskstation_manager
6.2
synology/router_manager
1.2
synology/skynas
Published
Jan 21, 2020
Tracked Since
Feb 18, 2026