Arbitrary Code Execution Affecting redcarpet package, versions < 3.3.2, >= 3.3.0

Threat Intelligence

0.86% (83^rd percentile)

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Snyk ID SNYK-RUBY-REDCARPET-20231
published 21 Jun 2015
disclosed 21 Jun 2015
credit Giancarlo Canales Barreto

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Introduced: 21 Jun 2015

CVE-2015-5147 Open this link in a new tab CWE-94 Open this link in a new tab

Overview

redcarpet is a fast, safe and extensible Markdown to (X)HTML parser.

Vulnerable versions of redcarpet Ruby contain a flaw that allows Arbitrary code execution via stack overflow.

Details

This flaw exists because the header_anchor() function in html.c uses variable length arrays (VLA) without any range checking. This may allow a remote attacker to execute arbitrary code.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

Low
Integrity (I)

Low
Availability (A)

Low