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Integer Overflow or Wraparound Affecting openssl package, versions <1.0.1t-1+deb8u4

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity 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-DEBIAN8-OPENSSL-374336
  • published 20 Jun 2016
  • disclosed 20 Jun 2016
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Introduced: 20 Jun 2016

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

How to fix?

Upgrade Debian:8 openssl to version 1.0.1t-1+deb8u4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Debian. See How to fix? for Debian:8 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