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redhatRedHatRHSA-2017:1265
HistoryMay 22, 2017 - 9:06 a.m.

(RHSA-2017:1265) Moderate: samba security and bug fix update

2017-05-2209:06:50
access.redhat.com
58

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:P/I:P/A:P

0.017 Low

EPSS

Percentile

87.4%

JSON

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.

Security Fix(es):

  • It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users. (CVE-2016-2125)

  • A flaw was found in the way Samba handled PAC (Privilege Attribute Certificate) checksums. A remote, authenticated attacker could use this flaw to crash the winbindd process. (CVE-2016-2126)

  • A race condition was found in samba server. A malicious samba client could use this flaw to access files and directories, in areas of the server file system not exported under the share definitions. (CVE-2017-2619)

Red Hat would like to thank the Samba project for reporting CVE-2017-2619. Upstream acknowledges Jann Horn (Google) as the original reporter of CVE-2017-2619.

OSVersionArchitecturePackageVersionFilename
RedHat7s390xsamba-libs< 4.4.4-13.el7_3samba-libs-4.4.4-13.el7_3.s390x.rpm
RedHat7ppc64samba-test< 4.4.4-13.el7_3samba-test-4.4.4-13.el7_3.ppc64.rpm
RedHat7s390xlibsmbclient< 4.4.4-13.el7_3libsmbclient-4.4.4-13.el7_3.s390x.rpm
RedHat7ppc64samba-test-libs< 4.4.4-13.el7_3samba-test-libs-4.4.4-13.el7_3.ppc64.rpm
RedHat7x86_64samba-client-libs< 4.4.4-13.el7_3samba-client-libs-4.4.4-13.el7_3.x86_64.rpm
RedHat7s390xsamba-common-tools< 4.4.4-13.el7_3samba-common-tools-4.4.4-13.el7_3.s390x.rpm
RedHat7s390xsamba-krb5-printing< 4.4.4-13.el7_3samba-krb5-printing-4.4.4-13.el7_3.s390x.rpm
RedHat7i686samba-devel< 4.4.4-13.el7_3samba-devel-4.4.4-13.el7_3.i686.rpm
RedHat7aarch64samba-client< 4.4.4-13.el7_3samba-client-4.4.4-13.el7_3.aarch64.rpm
RedHat7ppc64lesamba< 4.4.4-13.el7_3samba-4.4.4-13.el7_3.ppc64le.rpm
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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:P/I:P/A:P

0.017 Low

EPSS

Percentile

87.4%

JSON
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