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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Net-SNMP vulnerabilities (USN-4471-1)

high Nessus Plugin ID 139784

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4471-1 advisory.

 Tobias Neitzel discovered that Net-SNMP incorrectly handled certain symlinks. An attacker could possibly use this issue to access sensitive information. (CVE-2020-15861)

 It was discovered that Net-SNMP incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-15862)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4471-1

Plugin Details

Severity: High

ID: 139784

File Name: ubuntu_USN-4471-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 8/25/2020

Updated: 9/19/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2020-15862

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libsnmp-dev, p-cpe:/a:canonical:ubuntu_linux:snmp, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:snmpd, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python-netsnmp, p-cpe:/a:canonical:ubuntu_linux:libsnmp-base, p-cpe:/a:canonical:ubuntu_linux:snmptrapd, p-cpe:/a:canonical:ubuntu_linux:tkmib, p-cpe:/a:canonical:ubuntu_linux:libsnmp35, p-cpe:/a:canonical:ubuntu_linux:libsnmp30, p-cpe:/a:canonical:ubuntu_linux:libsnmp-perl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/24/2020

Vulnerability Publication Date: 8/20/2020

Reference Information

CVE: CVE-2020-15861, CVE-2020-15862

IAVA: 2020-A-0384-S

USN: 4471-1