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ubuntuUbuntuUSN-3348-1
HistoryJul 05, 2017 - 12:00 a.m.

Samba vulnerability

2017-07-0500:00:00
ubuntu.com
43

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

6.4

Confidence

High

EPSS

0.005

Percentile

77.3%

Releases

  • Ubuntu 17.04
  • Ubuntu 16.10
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • samba - SMB/CIFS file, print, and login server for Unix

Details

It was discovered that Samba incorrectly handled dangling symlinks. A
remote attacker could possibly use this issue to cause Samba to hang,
resulting in a denial of service. This issue only applied to Ubuntu 14.04
LTS and Ubuntu 16.04 LTS. (CVE-2017-9461)

In addition, this update fixes a regression introduced by USN-3267-1
that caused Samba to incorrectly handle non-wide symlinks to directories.

OSVersionArchitecturePackageVersionFilename
Ubuntu17.04noarchsamba< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchctdb< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchctdb-dbgsym< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibnss-winbind< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibnss-winbind-dbgsym< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibpam-winbind< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibpam-winbind-dbgsym< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibparse-pidl-perl< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibsmbclient< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
Ubuntu17.04noarchlibsmbclient-dbgsym< 2:4.5.8+dfsg-0ubuntu0.17.04.3UNKNOWN
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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

6.4

Confidence

High

EPSS

0.005

Percentile

77.3%