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Use of Externally-Controlled Format String Affecting ruby package, versions <2.4.2-r0

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
1.65% (88th percentile)

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  • Snyk IDSNYK-ALPINE312-RUBY-587796
  • published15 Sept 2017
  • 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 Alpine:3.12 ruby to version 2.4.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby package and not the ruby package as distributed by Alpine. See How to fix? for Alpine:3.12 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.

References