Missing Required Cryptographic Step Affecting openssl-libs package, versions <1:1.0.2k-16.el7


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
4.79% (93rd percentile)

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  • Snyk IDSNYK-CENTOS7-OPENSSLLIBS-2129859
  • published26 Jul 2021
  • disclosed12 Jun 2018

Introduced: 12 Jun 2018

CVE-2018-0732  (opens in a new tab)
CWE-325  (opens in a new tab)

How to fix?

Upgrade Centos:7 openssl-libs to version 1:1.0.2k-16.el7 or higher.

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 Centos. See How to fix? for Centos:7 relevant fixed versions and status.

During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).

References

CVSS Scores

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