CVE-2019-14907

NameCVE-2019-14907
DescriptionAll 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).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2668-1
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
samba (PTS)stretch2:4.5.16+dfsg-1+deb9u2vulnerable
stretch (security)2:4.5.16+dfsg-1+deb9u4fixed
buster2:4.9.5+dfsg-5vulnerable
buster (security)2:4.9.5+dfsg-5+deb10u1vulnerable
bookworm, sid, bullseye2:4.13.5+dfsg-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sambasourcestretch2:4.5.16+dfsg-1+deb9u4DLA-2668-1
sambasource(unstable)2:4.11.5+dfsg-1

Notes

[buster] - samba <no-dsa> (Minor issue)
[jessie] - samba <no-dsa> (Minor issue)
https://www.samba.org/samba/security/CVE-2019-14907.html

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