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Use of Externally-Controlled Format String Affecting ruby22-libs package, versions <0:2.2.8-1.9.amzn1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
9.72% (96th percentile)

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  • Snyk IDSNYK-AMZN201803-RUBY22LIBS-1708282
  • published27 Sept 2021
  • disclosed15 Sept 2017
Report a new vulnerability Found a mistake?

Introduced: 15 Sep 2017

CVE-2017-0898  (opens in a new tab)
CWE-134  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 ruby22-libs to version 0:2.2.8-1.9.amzn1 or higher.
This issue was patched in ALAS-2017-906.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby22-libs package and not the ruby22-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.