Denial of Service (DoS) Affecting openssl-static Open this link in a new tab package, versions >=1.0.2.c
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2 Oct 2019
29 Nov 2017
How to fix?
There is no fixed version for
OpenSSL-Static is an OpenSSL Static Libraries and CocoaPod for iOS and OSX. Please note that this package has reached EOL. You will no longer be able to download this package.
Affected versions of this package are vulnerable to Denial of Service (DoS).
SSL_write() is called directly after
SSL_connect()), leading to an "error state", if the
handshake fails then a fatal error will be returned in the initial function
call, that doesn't get handled correctly and allows the possibility for the application to crash.
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