ALT-PU-2021-2043-1

Package update libgcrypt in branch sisyphus

Version1.9.3-alt1

Published2021-06-23

Max severityHIGH

Severity:

Closed issues (2)

HIGH7.5

Уязвимость криптографической библиотеки Libgcrypt, связанная с использованием слабого криптографического алгоритма. позволяющая нарушителю получить доступ к конфиденциальной информации

Published: 2022-05-26Modified: 2025-10-07

CVSS 3.xHIGH 7.5

CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS 2.0HIGH 7.8

CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:N/A:N

References

CVE-2021-33560

HIGH7.5

Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.

Published: 2021-06-08Modified: 2025-12-03

CVSS 2.0MEDIUM 5.0

CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References