CVE-2016-1000341

medium

Description

In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.

References

https://www.oracle.com/security-alerts/cpuoct2020.html

https://usn.ubuntu.com/3727-1/

https://security.netapp.com/advisory/ntap-20181127-0004/

https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html

https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59ce

https://access.redhat.com/errata/RHSA-2018:2927

https://access.redhat.com/errata/RHSA-2018:2669

Details

Source: Mitre, NVD

Published: 2018-06-04

Updated: 2020-10-20

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.9

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

Severity: Medium