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Debian LTS Advisory DLA-3792-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/               Santiago Ruano Rincón
April 22, 2024                                https://wiki.debian.org/LTS
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Package        : samba
Version        : 2:4.9.5+dfsg-5+deb10u5
CVE ID         : CVE-2020-14318 CVE-2020-14323 CVE-2020-14383 CVE-2022-2127 
                 CVE-2022-3437 CVE-2022-32742 CVE-2023-4091

Several vulnerabilities were discovered in Samba, SMB/CIFS file, 
print, and login server for Unix

CVE-2020-14318

    Missing handle permissions check in ChangeNotify

CVE-2020-14323

    Unprivileged user can crash winbind via invalid lookupsids DoS

CVE-2020-14383

    DNS server crash via invalid records resulting from uninitialized
    variables

CVE-2022-2127

    Out-of-bounds read in winbind AUTH_CRAP

CVE-2022-3437

    Heimdal des/des3 heap-based buffer overflow

CVE-2022-32742

    Server memory information leak via SMB1

CVE-2023-4091

    Client can truncate files even with read-only permissions

For Debian 10 buster, these problems have been fixed in version
2:4.9.5+dfsg-5+deb10u5.

We recommend that you upgrade your samba packages.

For the detailed security status of samba please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/samba

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS