Buffer Access with Incorrect Length Value Affecting rubygem-pg package, versions <0:1.0.0-2.module+el8.1.0+3656+f80bfa1d


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.73% (81st percentile)

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  • Snyk IDSNYK-CENTOS8-RUBYGEMPG-2113033
  • 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-pg to version 0:1.0.0-2.module+el8.1.0+3656+f80bfa1d or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-pg package and not the rubygem-pg 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