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CVE-2019-14907

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Date: January 20, 2020

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).

Language: C

Severity Score

Related Resources (19)

https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
https://www.synology.com/security/advisory/Synology_SA_20_01
https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
https://access.redhat.com/security/cve/CVE-2019-14907
https://security.netapp.com/advisory/ntap-20200122-0001/
https://security.gentoo.org/glsa/202003-52
https://security-tracker.debian.org/tracker/CVE-2019-14907
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
https://nvd.nist.gov/vuln/detail/CVE-2019-14907
https://usn.ubuntu.com/4244-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-14907
https://www.samba.org/samba/security/CVE-2019-14907.html
https://security.alpinelinux.org/vuln/CVE-2019-14907
https://www.mend.io/vulnerability-database/CVE-2019-14907

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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