Resource Exhaustion Affecting openssl-libs package, versions <1:1.0.2k-24.amzn2.0.7


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.51% (78th percentile)

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  • Snyk IDSNYK-AMZN2-OPENSSLLIBS-5671928
  • published8 Jun 2023
  • disclosed22 Mar 2023

Introduced: 22 Mar 2023

CVE-2023-0464  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 openssl-libs to version 1:1.0.2k-24.amzn2.0.7 or higher.
This issue was patched in ALAS2-2023-2073.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl-libs package and not the openssl-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A security vulnerability has been identified in all supported versions

of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems.

Policy processing is disabled by default but can be enabled by passing the -policy&#39; argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()' function.

CVSS Scores

version 3.1