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CVE-2020-2655

Published: 15 January 2020

Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 11.0.5 and 13.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE accessible data as well as unauthorized read access to a subset of Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).

From the Ubuntu Security Team

Bengt Jonsson, Juraj Somorovsky, Kostis Sagonas, Paul Fiterau Brostean and Robert Merget discovered that OpenJDK incorrectly handled CertificateVerify TLS handshake messages. A remote attacker could possibly use this issue to insert, edit or obtain sensitive information. This issue only affected OpenJDK 11.

Notes

AuthorNote
sbeattie
opnejdk 11 and newer

Priority

Medium

Cvss 3 Severity Score

4.8

Score breakdown

Status

Package Release Status
openjdk-8
Launchpad, Ubuntu, Debian
bionic Not vulnerable

trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable

disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

icedtea-web
Launchpad, Ubuntu, Debian
bionic Not vulnerable

disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable

openjdk-9
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable

openjdk-lts
Launchpad, Ubuntu, Debian
bionic
Released (11.0.6+10-1ubuntu1~18.04.1)
trusty Does not exist

upstream Needs triage

xenial Does not exist

disco Ignored
(end of life)
eoan
Released (11.0.6+10-1ubuntu1~19.10.1)
focal
Released (11.0.6+10-1ubuntu1)
openjdk-12
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream Needs triage

bionic Does not exist

disco Ignored
(end of life)
eoan Does not exist

focal Does not exist

xenial Does not exist

openjdk-13
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(13.0.2+8-1)
trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 4.8
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N