<p>Upgrade <code>Debian:11</code> <code>openssl</code> to version 1.1.1n-0+deb11u5 or higher.</p>

Improper Certificate Validation Affecting openssl package, versions <1.1.1n-0+deb11u5

Threat Intelligence

0.14% (51^st percentile)

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Snyk ID SNYK-DEBIAN11-OPENSSL-5291773
published 29 Mar 2023
disclosed 28 Mar 2023

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Introduced: 28 Mar 2023

CVE-2023-0465 Open this link in a new tab CWE-295 Open this link in a new tab

How to fix?

Upgrade Debian:11 openssl to version 1.1.1n-0+deb11u5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks.

Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether.

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.

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)

None
Integrity (I)

Low
Availability (A)

None

Improper Certificate Validation Affecting openssl package, versions <1.1.1n-0+deb11u5

Severity

Snyk's Security Team recommends NVD's CVSS assessment