Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 / 13.10 : samba vulnerabilities (USN-2054-1)

high Nessus Plugin ID 71376
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Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

It was discovered that Winbind incorrectly handled invalid group names with the require_membership_of parameter. If an administrator used an invalid group name by mistake, access was granted instead of having the login fail. (CVE-2012-6150)

Stefan Metzmacher and Michael Adam discovered that Samba incorrectly handled DCE-RPC fragment length fields. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code as the root user. (CVE-2013-4408)

Hemanth Thummala discovered that Samba incorrectly handled file permissions when vfs_streams_depot or vfs_streams_xattr were enabled.
A remote attacker could use this issue to bypass intended restrictions. (CVE-2013-4475).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libpam-winbind, samba and / or winbind packages.

See Also

https://usn.ubuntu.com/2054-1/

Plugin Details

Severity: High

ID: 71376

File Name: ubuntu_USN-2054-1.nasl

Version: 1.16

Type: local

Agent: unix

Published: 12/12/2013

Updated: 9/19/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libpam-winbind, p-cpe:/a:canonical:ubuntu_linux:samba, p-cpe:/a:canonical:ubuntu_linux:winbind, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.04, cpe:/o:canonical:ubuntu_linux:13.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2013

Vulnerability Publication Date: 11/13/2013

Reference Information

CVE: CVE-2012-6150, CVE-2013-4408, CVE-2013-4475

BID: 63646, 64101, 64191

USN: 2054-1