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Debian Security Advisory DSA-4875-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
March 25, 2021                        https://www.debian.org/security/faq
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Package        : openssl
CVE ID         : CVE-2021-3449

A NULL pointer dereference was found in the signature_algorithms
processing in OpenSSL, a Secure Sockets Layer toolkit, which could
result in denial of service.

Additional details can be found in the upstream advisory:
https://openssl-library.org/news/secadv/20210325.txt

For the stable distribution (buster), this problem has been fixed in
version 1.1.1d-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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org