certfr_avis - CERTFR-2023-AVI-0255

CERTFR-2023-AVI-0255

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans OpenSSL. Elle permet à un attaquant de provoquer un déni de service à distance.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

OpenSSL versions 3.1 antérieures à 3.1.1
OpenSSL versions 3.0 antérieures à 3.0.9
OpenSSL versions 1.1.1 antérieures à 1.1.1u
OpenSSL versions 1.0.2 antérieures à 1.0.2zh (client du support premium uniquement)

L'éditeur considère que cette vulnérabilité est de faible gravité, ainsi le correctif de sécurité sera déployé pour chacune des versions lors de la prochaine mise à jour.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2023-0464 (GCVE-0-2023-0464)

Vulnerability from cvelistv5 – Published: 2023-03-22 16:36 – Updated: 2025-05-05 16:08

Summary

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' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.

Severity ?

No CVSS data available.

CWE

inefficient algorithmic complexity

Assigner

openssl

References

URL

Tags

	https://www.openssl.org/news/secadv/20230322.txt	vendor-advisory
	https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
	https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
	https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
	https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
	https://www.couchbase.com/alerts/
	https://www.debian.org/security/2023/dsa-5417
	https://lists.debian.org/debian-lts-announce/2023…
	https://security.gentoo.org/glsa/202402-08
	https://security.netapp.com/advisory/ntap-2024062…

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Affected: 3.1.0 , < 3.1.1 (semver) Affected: 3.0.0 , < 3.0.9 (semver) Affected: 1.1.1 , < 1.1.1u (custom) Affected: 1.0.2 , < 1.0.2zh (custom)

Credits

David Benjamin (Google) Dr Paul Dale

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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