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

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Snyk IDSNYK-RHEL7-OPENSSL-4627942
published26 Jul 2021
disclosed5 May 2016

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Introduced: 5 May 2016

CVE-2016-2177 (opens in a new tab) CWE-190 (opens in a new tab)

How to fix?

Upgrade RHEL:7 openssl to version 1:1.0.1e-51.el7_2.7 or higher.
This issue was patched in RHSA-2016:1940.

NVD Description

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