Out-of-Bounds Affecting openssl package, versions <1:3.0.1-43.el9_0


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-RHEL9-OPENSSL-3554211
  • published1 Nov 2022
  • disclosed1 Nov 2022

Introduced: 1 Nov 2022

CVE-2022-3786  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-121  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

Upgrade RHEL:9 openssl to version 1:3.0.1-43.el9_0 or higher.
This issue was patched in RHSA-2022:7288.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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 a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate 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). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

References

CVSS Scores

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