#47222 - Serious bug in Nettle's ecdsa_verify

Package	Source(s)		Maintainer(s)
guix		PTS Buildd Popcon

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Subject: Serious bug in Nettle's ecdsa_verify
From: Léo Le Bouter <lle-bout@zaclys.net>
To: 47222@debbugs.gnu.org
Date: Tue, 06 Apr 2021 13:09:57 +0200
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[Message part 1 (text/plain, inline)]

I am no expert cryptographer, it is likely that if I try backporting
such patches I will get something wrong that introduces more flaws.

https://security-tracker.debian.org/tracker/CVE-2021-20305 - no patch
backported yet
https://packages.ubuntu.com/source/focal/nettle - no patch backported
either

It would be best if Nettle adopted a forever (or almost) backwards
compatible ABI from now on like curl (https://curl.se/libcurl/abi.html)
so that such things don't happen again.

Thank you,
Léo

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#47222 Serious bug in Nettle's ecdsa_verify