MGASA-2019-0011

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MGASA-2019-0011

Summary: Updated ldb, talloc, and samba packages fix security vulnerabilities

Details: Florian Stuelpner discovered that Samba is vulnerable to infinite query recursion caused by CNAME loops, resulting in denial of service (CVE-2018-14629). 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 (CVE-2018-16841). 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 (CVE-2018-16851). Samba has been updated to version 4.7.12 of the 4.7.x stable branch, and the tdb, talloc, tevent, ldb, and cmocka packages have also been updated. The sssd package has also been rebuilt against the updated ldb.

References: https://advisories.mageia.org/MGASA-2019-0011.html, https://bugs.mageia.org/show_bug.cgi?id=24061, https://www.samba.org/samba/security/CVE-2018-14629.html, https://www.samba.org/samba/security/CVE-2018-16841.html, https://www.samba.org/samba/security/CVE-2018-16851.html, https://www.samba.org/samba/history/samba-4.7.0.html, https://www.samba.org/samba/history/samba-4.7.1.html, https://www.samba.org/samba/history/samba-4.7.2.html, https://www.samba.org/samba/history/samba-4.7.3.html, https://www.samba.org/samba/history/samba-4.7.4.html, https://www.samba.org/samba/history/samba-4.7.5.html, https://www.samba.org/samba/history/samba-4.7.6.html, https://www.samba.org/samba/history/samba-4.7.7.html, https://www.samba.org/samba/history/samba-4.7.8.html, https://www.samba.org/samba/history/samba-4.7.9.html, https://www.samba.org/samba/history/samba-4.7.10.html, https://www.samba.org/samba/history/samba-4.7.11.html, https://www.samba.org/samba/history/samba-4.7.12.html, https://www.debian.org/security/2018/dsa-4345