Homepage
About Snyk

Information Exposure Affecting libressl package, versions <2.6.5-r0

0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.08% (33rd percentile)
Expand this section
NVD
4.7 medium
Expand this section
SUSE
5.1 medium
Expand this section
Red Hat
5.1 medium

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALPINE37-LIBRESSL-268394
  • published 13 Jun 2018
  • disclosed 13 Jun 2018
Report a new vulnerability Found a mistake?

Introduced: 13 Jun 2018

CVE-2018-0495 Open this link in a new tab
CWE-203 Open this link in a new tab

How to fix?

Upgrade Alpine:3.7 libressl to version 2.6.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libressl package and not the libressl package as distributed by Alpine. See How to fix? for Alpine:3.7 relevant fixed versions and status.

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.

References