Information Exposure Affecting libtomcrypt package, versions <1.17-5ubuntu0.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.54% (41st percentile)

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  • Snyk IDSNYK-UBUNTU1404-LIBTOMCRYPT-264937
  • published15 Jun 2018
  • disclosed15 Jun 2018

Introduced: 15 Jun 2018

CVE-2018-12437  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 libtomcrypt to version 1.17-5ubuntu0.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libtomcrypt package and not the libtomcrypt package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, 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.

CVSS Base Scores

version 3.1