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Integer Overflow or Wraparound Affecting openssl-libs package, versions <1:1.0.1e-51.el7_2.7

high

Snyk CVSS

    Attack Complexity High
    Availability High

    Threat Intelligence

    EPSS 15.22% (96th percentile)
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NVD
9.8 critical
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Red Hat
5.9 medium

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  • Snyk ID SNYK-CENTOS7-OPENSSLLIBS-2070389
  • published 26 Jul 2021
  • disclosed 5 May 2016
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Introduced: 5 May 2016

CVE-2016-2177 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Centos:7 openssl-libs to version 1:1.0.1e-51.el7_2.7 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.

OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.

References