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CVE-2018-2634

Published: 17 January 2018

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: JGSS). Supported versions that are affected are Java SE: 7u161, 8u152 and 9.0.1; Java SE Embedded: 8u151. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. While the vulnerability is in Java SE, Java SE Embedded, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.0 Base Score 6.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N).

From the Ubuntu Security Team

It was discovered that the Java GSS implementation in OpenJDK in some situations did not properly apply subject credentials. An attacker could possibly use this to expose sensitive information or gain access to unauthorized resources.

Priority

Medium

Cvss 3 Severity Score

6.8

Score breakdown

Status

Package Release Status
openjdk-6
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

xenial Does not exist

openjdk-7
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist
(trusty was released [7u171-2.6.13-0ubuntu0.14.04.2])
upstream
Released (7u171-2.6.13-1)
xenial Does not exist

openjdk-8
Launchpad, Ubuntu, Debian
artful
Released (8u162-b12-0ubuntu0.17.10.2)
bionic Not vulnerable
(8u162-b12-1)
cosmic Not vulnerable
(8u162-b12-1)
disco Not vulnerable
(8u162-b12-1)
eoan Not vulnerable
(8u162-b12-1)
focal Not vulnerable
(8u162-b12-1)
groovy Not vulnerable
(8u162-b12-1)
hirsute Not vulnerable
(8u162-b12-1)
impish Not vulnerable
(8u162-b12-1)
jammy Not vulnerable
(8u162-b12-1)
precise Does not exist

trusty Does not exist

upstream
Released (8u162-b12-1)
xenial
Released (8u162-b12-0ubuntu0.16.04.2)
Patches:
upstream: http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/54545fe8a16c
openjdk-9
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (9.0.4+12-1)
xenial Needs triage

Severity score breakdown

Parameter Value
Base score 6.8
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N