From: Peter Korsgaard <peter@korsgaard.com>
To: buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH] package/botan: add upstream security fix for CVE-2021-40529
Date: Wed, 29 Sep 2021 20:08:50 +0200 [thread overview]
Message-ID: <87o88bmez1.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <20210918164248.20023-1-peter@korsgaard.com> (Peter Korsgaard's message of "Sat, 18 Sep 2021 18:42:46 +0200")
>>>>> "Peter" == Peter Korsgaard <peter@korsgaard.com> writes:
> Fixes the following security issue:
> - CVE-2021-40529: The ElGamal implementation in Botan through 2.18.1, as
> used in Thunderbird and other products, allows plaintext recovery because,
> during interaction between two cryptographic libraries, a certain
> dangerous combination of the prime defined by the receiver's public key,
> the generator defined by the receiver's public key, and the sender's
> ephemeral exponents can lead to a cross-configuration attack against
> OpenPGP
> For more details, see the upstream bug and issue writeup:
> - https://github.com/randombit/botan/pull/2790
> - https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1
> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Committed to 2021.02.x, 2021.05.x and 2021.08.x, thanks.
--
Bye, Peter Korsgaard
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prev parent reply other threads:[~2021-09-29 18:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-18 16:42 [Buildroot] [PATCH] package/botan: add upstream security fix for CVE-2021-40529 Peter Korsgaard
2021-09-18 17:45 ` Yann E. MORIN
2021-09-29 18:08 ` Peter Korsgaard [this message]
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