Medium severity · published Jan 21, 2020
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…
6.5
CVSS
3.2%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
DS
Directory Server · Synology
All versions, or not specified · source: NVD
DM
Diskstation Manager · Synology
6.2 · source: NVD
EL
Enterprise Linux · Redhat
7.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
30; 31 · source: NVD
RM
Router Manager · Synology
1.2 · source: NVD
SA
Samba · Samba
4.9.0 before 4.9.18; 4.10.0 before 4.10.12; 4.11.0 before 4.11.5 · source: NVD
SK
Skynas · Synology
All versions, or not specified · source: NVD
ST
Storage · Redhat
3.0 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 19.04; 19.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14907
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-14907
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907
Mailing List
https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
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