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[SECURITY] [DLA 2760-1] nettle security update

Debian LTS Advisory DLA-2760-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
September 18, 2021                            https://wiki.debian.org/LTS

Package        : nettle
Version        : 3.3-1+deb9u1
CVE ID         : CVE-2021-3580 CVE-2021-20305
Debian Bug     : 985652 989631

Multiple vulnerabilities were discovered in nettle, a low level
cryptographic library, which could result in denial of service (remote
crash in RSA decryption via specially crafted ciphertext, crash on ECDSA
signature verification) or incorrect verification of ECDSA signatures.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your nettle packages.

For the detailed security status of nettle 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

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