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Ubuntu: (Multiple Advisories) (CVE-2017-7526): GnuPG vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2017-7526): GnuPG vulnerability

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
06/29/2017
Created
07/25/2018
Added
07/04/2017
Modified
03/02/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-gnupg
  • ubuntu-upgrade-gnupg-curl
  • ubuntu-upgrade-gpgv
  • ubuntu-upgrade-libgcrypt11
  • ubuntu-upgrade-libgcrypt20

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