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Debian 10: DLA-3530-1 Critical: OpenSSL Denial Of Service

debian lts
Calendar Grey August 16, 2023
Dist Debian Esm H88
Ubuntu Security Notice USN-1234-2 highlights severe vulnerabilities in libssl, which may result in service interruptions. Important to perform update.
Two vunerabilities were discovered in openssl, a Secure Sockets Layer toolkit: CVE-2023-3446, CVE-2023-3817
Topics%20covered

Topics Covered

security advisory denial of service security issue critical Debian openssl

Summary

CVE-2023-3446, CVE-2023-3817

Excessively long DH key or parameter checks can cause significant delays
in applications using DH_check(), DH_check_ex(), or EVP_PKEY_param_check()
functions, potentially leading to Denial of Service attacks when keys or
parameters are obtained from untrusted sources.


For Debian 10 buster, these problems have been fixed in version
1.1.1n-0+deb10u6.

We recommend that you upgrade your openssl packages.

For the detailed security status of openssl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/openssl

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
High
Critical

Package: openssl
Version: 1.1.1n-0+deb10u6
CVE ID: CVE-2023-3446 CVE-2023-3817

Topics%20covered

Topics Covered

security advisory denial of service security issue critical Debian openssl

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