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Ubuntu: (Multiple Advisories) (CVE-2020-12402): NSS vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2020-12402): NSS vulnerability

Severity
1
CVSS
(AV:L/AC:H/Au:N/C:P/I:N/A:N)
Published
07/03/2020
Created
08/07/2020
Added
08/05/2020
Modified
03/22/2023

Description

During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes. *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might. This vulnerability affects Firefox < 78.

Solution(s)

  • ubuntu-upgrade-libnss3

References

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