5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information. A denial of service flaw was found in the LDAP server provided by the AD DC in the Samba process daemon. A remote attacker could exploit this flaw by sending a specially crafted packet, which could cause the server to consume an excessive amount of memory and crash. (CVE-2015-7540) Multiple buffer over-read flaws were found in the way Samba handled malformed inputs in certain encodings. An authenticated, remote attacker could possibly use these flaws to disclose portions of the server memory. (CVE-2015-5330) A man-in-the-middle vulnerability was found in the way “connection signing” was implemented by Samba. A remote attacker could use this flaw to downgrade an existing Samba client connection and force the use of plain text. (CVE-2015-5296) A missing access control flaw was found in Samba. A remote, authenticated attacker could use this flaw to view the current snapshot on a Samba share, despite not having DIRECTORY_LIST access rights. (CVE-2015-5299) An access flaw was found in the way Samba verified symbolic links when creating new files on a Samba share. A remote attacker could exploit this flaw to gain access to files outside of Samba’s share path. (CVE-2015-5252) Red Hat would like to thank the Samba project for reporting these issues. Upstream acknowledges Stefan Metzmacher of the Samba Team and Sernet.de as the original reporters of CVE-2015-5296, [email protected] as the original reporter of CVE-2015-5299, Jan “Yenya” Kasprzak and the Computer Systems Unit team at Faculty of Informatics, Masaryk University as the original reporters of CVE-2015-5252 flaws, and Douglas Bagnall as the original reporter of CVE-2015-5330. All samba users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically.
lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html
lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html
lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html
lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html
lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html
lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html
lists.opensuse.org/opensuse-security-announce/2016-01/msg00002.html
lists.opensuse.org/opensuse-security-announce/2016-01/msg00017.html
lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
www.debian.org/security/2016/dsa-3433
www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
www.securityfocus.com/bid/79729
www.securitytracker.com/id/1034493
www.ubuntu.com/usn/USN-2855-1
www.ubuntu.com/usn/USN-2855-2
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1276126
bugzilla.redhat.com/show_bug.cgi?id=1288451
git.samba.org/?p=samba.git;a=commit;h=675fd8d771f9d43e354dba53ddd9b5483ae0a1d7
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993
rhn.redhat.com/errata/RHSA-2016-0006.html
security.gentoo.org/glsa/201612-47
www.samba.org/samba/security/CVE-2015-5299.html
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N