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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : OpenJDK vulnerabilities (USN-4607-1)

medium Nessus Plugin ID 142001

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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-4607-1 advisory.

 It was discovered that OpenJDK incorrectly handled deserializing Proxy class objects with many interfaces.
 A remote attacker could possibly use this issue to cause a denial of service (memory consumption) via a specially crafted input. (CVE-2020-14779)

 Sergey Ostanin discovered that OpenJDK incorrectly restricted authentication mechanisms. A remote attacker could possibly use this issue to obtain sensitive information over an unencrypted connection.
 (CVE-2020-14781)

 It was discovered that OpenJDK incorrectly handled untrusted certificates. An attacker could possibly use this issue to read or write sensitive information. (CVE-2020-14782)

 Zhiqiang Zang discovered that OpenJDK incorrectly checked for integer overflows. An attacker could possibly use this issue to bypass certain Java sandbox restrictions. (CVE-2020-14792)

 Markus Loewe discovered that OpenJDK incorrectly checked permissions when converting a file system path to an URI. An attacker could possibly use this issue to bypass certain Java sandbox restrictions.
 (CVE-2020-14796)

 Markus Loewe discovered that OpenJDK incorrectly checked for invalid characters when converting an URI to a path. An attacker could possibly use this issue to read or write sensitive information. (CVE-2020-14797)

 Markus Loewe discovered that OpenJDK incorrectly checked the length of input strings. An attacker could possibly use this issue to bypass certain Java sandbox restrictions. (CVE-2020-14798)

 It was discovered that OpenJDK incorrectly handled boundary checks. An attacker could possibly use this issue to bypass certain Java sandbox restrictions. (CVE-2020-14803)

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-4607-1

Plugin Details

Severity: Medium

ID: 142001

File Name: ubuntu_USN-4607-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 10/28/2020

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: Low

Score: 2.5

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2020-14792

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS Score Source: CVE-2020-14803

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre, p-cpe:/a:canonical:ubuntu_linux:openjdk-11-demo, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:openjdk-11-source, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jdk, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-demo, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jdk, p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jdk-headless, p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre-headless, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre, p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre-zero, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-source, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-jamvm, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jdk-headless, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-zero, p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-headless

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2020

Vulnerability Publication Date: 10/21/2020

Reference Information

CVE: CVE-2020-14779, CVE-2020-14781, CVE-2020-14782, CVE-2020-14792, CVE-2020-14796, CVE-2020-14797, CVE-2020-14798, CVE-2020-14803

USN: 4607-1