Ubuntu 14.04 LTS / 15.04 : openjdk-7 vulnerabilities (USN-2696-1) (Bar Mitzvah) (Logjam)

Critical Nessus Plugin ID 85154

Synopsis

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

Description

Several vulnerabilities were discovered in the OpenJDK JRE related to information disclosure, data integrity, and availability. An attacker could exploit these to cause a denial of service or expose sensitive data over the network. (CVE-2015-2590, CVE-2015-2628, CVE-2015-4731, CVE-2015-4732, CVE-2015-4733, CVE-2015-4760, CVE-2015-4748)

Several vulnerabilities were discovered in the cryptographic components of the OpenJDK JRE. An attacker could exploit these to expose sensitive data over the network. (CVE-2015-2601, CVE-2015-2808, CVE-2015-4000, CVE-2015-2625, CVE-2015-2613)

As a security improvement, this update modifies OpenJDK behavior to disable RC4 TLS/SSL cipher suites by default.

As a security improvement, this update modifies OpenJDK behavior to reject DH key sizes below 768 bits by default, preventing a possible downgrade attack.

Several vulnerabilities were discovered in the OpenJDK JRE related to information disclosure. An attacker could exploit these to expose sensitive data over the network. (CVE-2015-2621, CVE-2015-2632)

A vulnerability was discovered with how the JNDI component of the OpenJDK JRE handles DNS resolutions. A remote attacker could exploit this to cause a denial of service. (CVE-2015-4749).

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 packages.

See Also

https://usn.ubuntu.com/2696-1/

Plugin Details

Severity: Critical

ID: 85154

File Name: ubuntu_USN-2696-1.nasl

Version: 2.10

Type: local

Agent: unix

Published: 2015/07/31

Updated: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

CVSS v3.0

Base Score: 3.7

Temporal Score: 3.6

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:icedtea-7-jre-jamvm, p-cpe:/a:canonical:ubuntu_linux:openjdk-7-jdk, p-cpe:/a:canonical:ubuntu_linux:openjdk-7-jre, p-cpe:/a:canonical:ubuntu_linux:openjdk-7-jre-headless, p-cpe:/a:canonical:ubuntu_linux:openjdk-7-jre-lib, p-cpe:/a:canonical:ubuntu_linux:openjdk-7-jre-zero, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.04

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: 2015/07/30

Reference Information

CVE: CVE-2015-2590, CVE-2015-2601, CVE-2015-2613, CVE-2015-2621, CVE-2015-2625, CVE-2015-2628, CVE-2015-2632, CVE-2015-2808, CVE-2015-4000, CVE-2015-4731, CVE-2015-4732, CVE-2015-4733, CVE-2015-4748, CVE-2015-4749, CVE-2015-4760

USN: 2696-1