ALT-PU-2017-2225-1

Package update libgcrypt in branch p8

Version1.7.9-alt1.M80P.1

Published2017-09-18

Max severityHIGH

Severity:

Closed issues (4)

MEDIUM6.1

Уязвимость библиотеки libgcrypt11, связанная с отсутствием защиты служебных данных, позволяющая нарушителю нарушить конфиденциальность данных

Published: 2018-01-12Modified: 2022-12-07

CVSS 3.xMEDIUM 6.1

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

CVSS 2.0MEDIUM 4.9

CVSS:2.0/AV:N/AC:H/Au:S/C:C/I:N/A:N

References

CVE-2017-7526

HIGH7.5

Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.

Published: 2017-08-29Modified: 2025-04-20

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

MEDIUM6.8

libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.

Published: 2018-07-26Modified: 2024-11-21

CVSS 2.0MEDIUM 4.3

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

CVSS 3.xMEDIUM 6.8

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

References

MEDIUM5.9

In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.

Published: 2017-06-11Modified: 2025-04-20

CVSS 2.0MEDIUM 4.3

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

CVSS 3.xMEDIUM 5.9

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

References