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Debian LTS Advisory DLA-2493-1                [email protected]
https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
December 14, 2020                             https://wiki.debian.org/LTS
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Package        : openssl1.0
Version        : 1.0.2u-1~deb9u3
CVE ID         : CVE-2020-1971

David Benjamin discovered a flaw in the GENERAL_NAME_cmp() function
which could cause a NULL dereference, resulting in denial of service.

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your openssl1.0 packages.

For the detailed security status of openssl1.0 please refer to
its security tracker page at:

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