Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Samba vulnerabilities (USN-4409-1)

high Nessus Plugin ID 138134
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Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Andrew Bartlett discovered that Samba incorrectly handled certain LDAP queries. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS. (CVE-2020-10730) Douglas Bagnall discovered that Samba incorrectly handled certain queries. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2020-10745) Andrei Popa discovered that Samba incorrectly handled certain LDAP queries. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS. (CVE-2020-10760).

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 samba package.

See Also

https://usn.ubuntu.com/4409-1/

Plugin Details

Severity: High

ID: 138134

File Name: ubuntu_USN-4409-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 7/6/2020

Updated: 9/25/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-10745

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:samba, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:19.10, cpe:/o:canonical:ubuntu_linux:20.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/2/2020

Vulnerability Publication Date: 7/6/2020

Reference Information

CVE: CVE-2020-10730, CVE-2020-10745, CVE-2020-10760

USN: 4409-1

IAVA: 2020-A-0288-S