Detections
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Ubuntu 16.04 ESM : musl vulnerabilities (USN-4768-1)

critical Nessus Plugin ID 183587

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4768-1 advisory.

 It was discovered that musl did not properly handle kernel syscalls. An attacker could use this vulnerability to cause a denial of service (crash) or possibly execute arbitrary code. (CVE-2018-1000001)

 It was discovered that musl did not properly handle the parsing of DNS response codes. A remote attacker could use this vulnerability to cause resource consumption (infinite loop), denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM. (CVE-2014-3484)

 It was discovered that musl did not properly handle the parsing of DNS response codes. A remote attacker could use this vulnerability to cause resource consumption (infinite loop), denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 ESM. (CVE-2017-15650)

 It was discovered that musl did not properly handle the parsing of ipv6 addresses. An attacker could use this vulnerability to cause a denial of service (crash) or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM. (CVE-2015-1817)

 It was discovered that TRE library, used by musl, did not properly handle certain inputs. An attacker could use this vulnerability to cause a denial of service (crash). (CVE-2016-8859)

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 musl, musl-dev and / or musl-tools packages.

See Also

https://ubuntu.com/security/notices/USN-4768-1

Plugin Details

Severity: Critical

ID: 183587

File Name: ubuntu_USN-4768-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/20/2023

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

CVSS Score Source: CVE-2016-8859

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:musl, p-cpe:/a:canonical:ubuntu_linux:musl-tools, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:musl-dev

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/15/2021

Vulnerability Publication Date: 6/6/2014

Exploitable With

Metasploit (glibc realpath() Privilege Escalation)

Reference Information

CVE: CVE-2014-3484, CVE-2015-1817, CVE-2016-8859, CVE-2017-15650, CVE-2018-1000001

USN: 4768-1