Rapid7 Vulnerability & Exploit Database

Ubuntu: (Multiple Advisories) (CVE-2018-0495): NSS vulnerabilities

Back to Search

Ubuntu: (Multiple Advisories) (CVE-2018-0495): NSS vulnerabilities

Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
06/13/2018
Created
07/25/2018
Added
06/27/2018
Modified
03/02/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-libgcrypt11
  • ubuntu-upgrade-libgcrypt20
  • ubuntu-upgrade-libnss3
  • ubuntu-upgrade-libssl1-0-0
  • ubuntu-upgrade-libssl1-1

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;