Buffer Access with Incorrect Length Value Affecting rubygem-power_assert package, versions <0:1.1.1-107.module+el8.4.0+10822+fe4fffb1


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.73% (81st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS8-RUBYGEMPOWERASSERT-2112969
  • published26 Jul 2021
  • disclosed31 Mar 2020

Introduced: 31 Mar 2020

CVE-2020-10933  (opens in a new tab)
CWE-805  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Centos:8 rubygem-power_assert to version 0:1.1.1-107.module+el8.4.0+10822+fe4fffb1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-power_assert package and not the rubygem-power_assert package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.

CVSS Scores

version 3.1