An openssl security update has been released for Debian GNU/Linux 10 to address a denial of service issue.
DSA 4661-1: openssl security update
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Debian Security Advisory DSA-4661-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
April 21, 2020 https://www.debian.org/security/faq
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Package : openssl
CVE ID : CVE-2020-1967
Bernd Edlinger discovered that malformed data passed to the
SSL_check_chain() function during or after a TLS 1.3 handshake could
cause a NULL dereference, resulting in denial of service.
The oldstable distribution (stretch) is not affected.
For the stable distribution (buster), this problem has been fixed in
version 1.1.1d-0+deb10u3.
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/openssl
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
