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Denial of Service (DoS) Affecting openssl package, versions >=1.0.1, <1.0.200 >=1.0.204.1, <1.0.207

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 3.99% (92nd percentile)
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NVD
9.8 critical
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SUSE
9.8 critical
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Red Hat
3.7 low

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  • Snyk ID SNYK-COCOAPODS-OPENSSL-470645
  • published 2 Oct 2019
  • disclosed 18 Feb 2016
  • credit Unknown
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Introduced: 18 Feb 2016

CVE-2016-0705 Open this link in a new tab

How to fix?

Upgrade OpenSSL to version 1.0.200, 1.0.207 or higher.

Overview

OpenSSL is a SSL/TLS and Crypto toolkit. Deprecated in Mac OS and gone in iOS, this spec gives your project non-deprecated OpenSSL support.

Affected versions of this package are vulnerable to Denial of Service (DoS). OpenSSL is vulnerable to denial of service (DoS) attacks. A malicious user can pass a malicious DSA private key to the system, causing a double-free in the system that can lead to the application to crash.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

References