Out-of-Bounds Affecting openssl-libs package, versions <1:1.0.1e-34.el7_0.3


high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 96.87% (100th percentile)
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NVD
6.3 medium
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Red Hat
5.4 medium

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  • Snyk ID SNYK-CENTOS7-OPENSSLLIBS-2030739
  • published 26 Jul 2021
  • disclosed 5 Jun 2014

How to fix?

Upgrade Centos:7 openssl-libs to version 1:1.0.1e-34.el7_0.3 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.

The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly validate fragment lengths in DTLS ClientHello messages, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a long non-initial fragment.

References