Buffer Overflow Affecting openssl package, versions [3.0.0,3.0.7)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSL-3092519
  • published1 Nov 2022
  • disclosed1 Nov 2022
  • creditViktor Dukhovni

Introduced: 1 Nov 2022

CVE-2022-3786  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade openssl to version 3.0.7 or higher.

Overview

Affected versions of this package are vulnerable to Buffer Overflow. A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer.

An attacker can craft a malicious email address to overflow an arbitrary number of bytes containing the . character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service).

A full break down of this vulnerability can be found in our technical deep dive.

NOTE: The Node.js project has announced that 18.x and 19.x releases are affected, and fixed versions are expected on or soon after November 3. This advisory will be updated accordingly when they are released.

Changelog

November 1, 2022 - Advisory published.

November 2, 2022 - Node.js listed as affected, in advance of fix.

November 5, 2022 - Node.js fixed versions added.

CVSS Scores

version 3.1