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Information Exposure Affecting openssl-libs package, versions <1:1.0.2k-16.amzn2.0.1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-AMZN2-OPENSSLLIBS-1666384
  • published27 Sept 2021
  • disclosed13 Jun 2018
Report a new vulnerability Found a mistake?

Introduced: 13 Jun 2018

CVE-2018-0495  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 openssl-libs to version 1:1.0.2k-16.amzn2.0.1 or higher.
This issue was patched in ALAS2-2018-1102.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl-libs package and not the openssl-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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