CVE-2018-2952

Published: 18 July 2018

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: Concurrency). Supported versions that are affected are Java SE: 6u191, 7u181, 8u172 and 10.0.1; Java SE Embedded: 8u171; JRockit: R28.3.18. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

From the Ubuntu security team

It was discovered that the PatternSyntaxException class in OpenJDK did not properly validate arguments passed to it. An attacker could use this to potentially construct a class that caused a denial of service (excessive memory consumption).

Priority

Medium

CVSS 3 base score: 3.7

Status

Package Release Status
openjdk-6
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was needs-triage)
openjdk-7
Launchpad, Ubuntu, Debian
Upstream
Released (7u181-2.6.14-2~deb8u1)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [7u181-2.6.14-0ubuntu0.2])
openjdk-8
Launchpad, Ubuntu, Debian
Upstream
Released (8u181-b13-1)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(8u181-b13-1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(8u181-b13-1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (8u181-b13-0ubuntu0.18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (8u181-b13-0ubuntu0.16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/baac18e216fb
openjdk-9
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

openjdk-lts
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla)
Released (10.0.2+13-1ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (10.0.2+13-1ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (10.0.2+13-1ubuntu0.18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist