CVE-2019-19344

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.

• CWE-416
• CWE-416

• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344Issue Tracking, Third Party Advisory
• 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/Third Party Advisory
• https://usn.ubuntu.com/4244-1/Third Party Advisory
• https://www.samba.org/samba/security/CVE-2019-19344.htmlVendor Advisory
• https://www.synology.com/security/advisory/Synology_SA_20_01Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19344Issue Tracking, Third Party Advisory
• 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/Third Party Advisory
• https://usn.ubuntu.com/4244-1/Third Party Advisory
• https://www.samba.org/samba/security/CVE-2019-19344.htmlVendor Advisory
• https://www.synology.com/security/advisory/Synology_SA_20_01Third Party Advisory

Published

Jan 21, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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