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Michael Tokarev [Tue, 26 May 2026 12:46:55 +0000 (15:46 +0300)]
samba (2:4.22.10+dfsg-0+deb13u1) trixie; urgency=medium
* switch to actual upstream release for the May-2026 security fixes:
* This is a security release in order to address the following defects:
CVE-2026-1933: Missing access checks on reparse point operations
On a share marked "read only = yes" and on file handles opened R/O users
can set or delete the reparse point xattrs on files that the user has
write-access in the file system for.
https://www.samba.org/samba/security/CVE-2026-1933.html
CVE-2026-2340: WORM vfs module does not block overwrites
The WORM (Write-Once, Read Many) vfs module is supposed to lock write
access to shared files, so they cannot be altered after initial writes.
It was allowing files to be overwritten by renaming a newly created file
over a protected file.
https://www.samba.org/samba/security/CVE-2026-2340.html
CVE-2026-3012: auto-enrolment GPO installing CA certificate over http
without verification
To bootstrap a certificate chain a domain member must fetch a certificate
without TLS. It was trusting HTTP for this when a more secure encrypted
LDAP channel was also available.
https://www.samba.org/samba/security/CVE-2026-3012.html
CVE-2026-3238: Denial of service against AD DC WINS server
The WINS server component of the Active Directory Domain controller code
in Samba is vulnerable to a NULL pointer dereference and crash caused by
an unauthenticated UDP packet.
https://www.samba.org/samba/security/CVE-2026-3238.html
CVE-2026-4408: Unauthenticated Remote Code Execution in Samba DCE/RPC
SAMR server
Samba file servers and classic (non-AD) domain controllers with
samba-dcerpcd started as a system service and with a "check password
script" that has the %u substitution character are vulnerable to a
remote code execution.
https://www.samba.org/samba/security/CVE-2026-4408.html
CVE-2026-4480: Unauthenticated Remote Code Execution in Samba
printing subsystem
Samba print servers with a "print command" that has the %J substitution
character are vulnerable to a Remote Code Execution.
https://www.samba.org/samba/security/CVE-2026-4480.html
[dgit import unpatched samba 2:4.22.10+dfsg-0+deb13u1]
Michael Tokarev [Tue, 26 May 2026 12:46:55 +0000 (15:46 +0300)]
Import samba_4.22.10+dfsg.orig.tar.xz
[dgit import orig samba_4.22.10+dfsg.orig.tar.xz]
Michael Tokarev [Tue, 26 May 2026 12:46:55 +0000 (15:46 +0300)]
Import samba_4.22.10+dfsg-0+deb13u1.debian.tar.xz
[dgit import tarball samba 2:4.22.10+dfsg-0+deb13u1 samba_4.22.10+dfsg-0+deb13u1.debian.tar.xz]