CVE-2019-14907

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).

• CWE-125
• CWE-125

• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/05/msg00023.htmlMailing List, 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/202003-52Third Party Advisory
• 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-2019-14907.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-2019-14907Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/05/msg00023.htmlMailing List, 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/202003-52Third Party Advisory
• 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-2019-14907.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

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