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centosCentOS ProjectCESA-2018:1649
HistoryMay 22, 2018 - 6:16 p.m.

java security update

2018-05-2218:16:51
CentOS Project
lists.centos.org
95

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

0.002 Low

EPSS

Percentile

60.6%

CentOS Errata and Security Advisory CESA-2018:1649

The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

Security Fix(es):

  • An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor’s data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)

Note: This is the OpenJDK side of the CVE-2018-3639 mitigation.

Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2018-May/085001.html

Affected packages:
java-1.8.0-openjdk
java-1.8.0-openjdk-accessibility
java-1.8.0-openjdk-accessibility-debug
java-1.8.0-openjdk-debug
java-1.8.0-openjdk-demo
java-1.8.0-openjdk-demo-debug
java-1.8.0-openjdk-devel
java-1.8.0-openjdk-devel-debug
java-1.8.0-openjdk-headless
java-1.8.0-openjdk-headless-debug
java-1.8.0-openjdk-javadoc
java-1.8.0-openjdk-javadoc-debug
java-1.8.0-openjdk-javadoc-zip
java-1.8.0-openjdk-javadoc-zip-debug
java-1.8.0-openjdk-src
java-1.8.0-openjdk-src-debug

Upstream details at:
https://access.redhat.com/errata/RHSA-2018:1649

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

0.002 Low

EPSS

Percentile

60.6%