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Debian Security Advisory DSA-4345-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
November 27, 2018 https://www.debian.org/security/faq
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Package : samba
CVE ID : CVE-2018-14629 CVE-2018-16841 CVE-2018-16851
Several vulnerabilities have been discovered in Samba, a SMB/CIFS file,
print, and login server for Unix. The Common Vulnerabilities and
Exposures project identifies the following issues:
CVE-2018-14629
Florian Stuelpner discovered that Samba is vulnerable to
infinite query recursion caused by CNAME loops, resulting in
denial of service.
https://www.samba.org/samba/security/CVE-2018-14629.html
CVE-2018-16841
Alex MacCuish discovered that a user with a valid certificate or
smart card can crash the Samba AD DC’s KDC when configured to accept
smart-card authentication.
https://www.samba.org/samba/security/CVE-2018-16841.html
CVE-2018-16851
Garming Sam of the Samba Team and Catalyst discovered a NULL pointer
dereference vulnerability in the Samba AD DC LDAP server allowing a
user able to read more than 256MB of LDAP entries to crash the Samba
AD DC’s LDAP server.
https://www.samba.org/samba/security/CVE-2018-16851.html
For the stable distribution (stretch), these problems have been fixed in
version 2:4.5.12+dfsg-2+deb9u4.
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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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