Source: samba
Version: 2:4.13.14+dfsg-1
Severity: grave
Tags: security upstream
Forwarded: https://bugzilla.samba.org/show_bug.cgi?id=13979
X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Control: found -1 2:4.13.13+dfsg-1~deb11u2
Control: found -1 2:4.9.5+dfsg-5+deb10u2

Hi,

The following vulnerability was published for samba.

CVE-2021-43566[0]:
| All versions of Samba prior to 4.13.16 are vulnerable to a malicious
| client using an SMB1 or NFS race to allow a directory to be created in
| an area of the server file system not exported under the share
| definition. Note that SMB1 has to be enabled, or the share also
| available via NFS in order for this attack to succeed.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-43566
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43566
[1] https://www.samba.org/samba/security/CVE-2021-43566.html
[2] https://bugzilla.samba.org/show_bug.cgi?id=13979

Regards,
Salvatore

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