Use of Uninitialized Resource Affecting rubygem-net-telnet package, versions <0:0.2.0-107.module+el8.4.0+20235+1e5b8be3


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.65% (81st percentile)

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  • Snyk IDSNYK-ORACLE8-RUBYGEMNETTELNET-2584036
  • published10 Apr 2022
  • disclosed4 May 2020

Introduced: 4 May 2020

CVE-2020-10933  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Oracle:8 rubygem-net-telnet to version 0:0.2.0-107.module+el8.4.0+20235+1e5b8be3 or higher.
This issue was patched in ELSA-2021-2588.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-net-telnet package and not the rubygem-net-telnet package as distributed by Oracle. See How to fix? for Oracle: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