CVE Vulnerabilities

CVE-2019-11775

Time-of-check Time-of-use (TOCTOU) Race Condition

Published: Jul 30, 2019 | Modified: Oct 08, 2020
CVSS 3.x
7.4
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:P
RedHat/V2
RedHat/V3
7.4 IMPORTANT
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Ubuntu

All builds of Eclipse OpenJ9 prior to 0.15 contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loop that reads a field we may not privatize the value of that field in the modified copy of the loop allowing the test to see one value of the field and subsequently the loop to see a modified field value without retesting the condition moved out of the loop. This can lead to a variety of different issues but read out of array bounds is one major consequence of these problems.

Weakness

The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

Affected Software

Name Vendor Start Version End Version
Openj9 Eclipse * 0.15.0 (excluding)
Red Hat Enterprise Linux 6 Supplementary RedHat java-1.7.1-ibm-1:1.7.1.4.50-1jpp.1.el6_10 *
Red Hat Enterprise Linux 6 Supplementary RedHat java-1.8.0-ibm-1:1.8.0.5.40-1jpp.1.el6_10 *
Red Hat Enterprise Linux 7 Supplementary RedHat java-1.7.1-ibm-1:1.7.1.4.50-1jpp.1.el7 *
Red Hat Enterprise Linux 7 Supplementary RedHat java-1.8.0-ibm-1:1.8.0.5.40-1jpp.1.el7 *
Red Hat Enterprise Linux 8 RedHat java-1.8.0-ibm-1:1.8.0.5.40-3.el8_0 *
Red Hat Satellite 5.8 RedHat java-1.8.0-ibm-1:1.8.0.5.40-1jpp.1.el6_10 *

Potential Mitigations

References