Denial of Service (DoS) Affecting openssl-src package, versions >=300.0.0 <300.0.12


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.53% (78th percentile)

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  • Snyk IDSNYK-RUST-OPENSSLSRC-3316212
  • published9 Feb 2023
  • disclosed7 Feb 2023
  • creditHubert Kario, Dmitry Belyavsky

Introduced: 7 Feb 2023

CVE-2023-0401  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade openssl-src to version 300.0.12 or higher.

Overview

openssl-src is a crate that contains the logic to build OpenSSL and is intended to be consumed by the openssl-sys crate.

Affected versions of this package are vulnerable to Denial of Service (DoS) due to a null pointer dereference in when signatures are being verified on PKCS7 signed or signedAndEnveloped data in pkcs7/pk7_doit.c. If the hash algorithm used for the signature is known to the OpenSSL library but the implementation of the hash algorithm is not available, the digest initialization will fail.

NOTE: The TLS implementation in OpenSSL does not call these functions.

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

CVSS Scores

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