Use of a Broken or Risky Cryptographic Algorithm Affecting MozillaThunderbird package, versions <91.4.0-8.45.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
1.53% (72nd percentile)

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  • Snyk IDSNYK-SLES153-MOZILLATHUNDERBIRD-2651467
  • published14 Apr 2022
  • disclosed22 Dec 2021

Introduced: 22 Dec 2021

CVE-2021-40529  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 MozillaThunderbird to version 91.4.0-8.45.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream MozillaThunderbird package and not the MozillaThunderbird package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1