ALT-PU-2018-1910-1

Package update libgcrypt in branch p8

Version1.7.10-alt1.M80P.1

Published2018-06-18

Max severityMEDIUM

Severity:

Closed issues (2)

MEDIUM4.7

Уязвимость функции _gcry_ecc_ecdsa_sign криптографической библиотеки Libgcrypt, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Published: 2019-02-07Modified: 2021-03-23

CVSS 3.xMEDIUM 4.7

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

CVSS 2.0MEDIUM 4.7

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

References

CVE-2018-0495

MEDIUM4.7

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Published: 2018-06-13Modified: 2024-11-21

CVSS 2.0LOW 1.9

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

CVSS 3.xMEDIUM 4.7

CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References