CVE-2023-31147

CVE Details

Release Date:	2023-05-22
Impact:	Moderate	What is this?

Description

c-ares is an asynchronous resolver library. When /dev/urandom or RtlGenRandom() are unavailable, c-ares uses rand() to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand() so will generate predictable output. Input from the random number generator is fed into a non-compilant RC4 implementation and may not be as strong as the original RC4 implementation. No attempt is made to look for modern OS-provided CSPRNGs like arc4random() that is widely available. This issue has been fixed in version 1.19.1.

See more information about CVE-2023-31147 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	5.9
Vector String:	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Version:	3.0
Attack Vector:	Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	High
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (nodejs)	ELSA-2023-4034	2023-07-19
Oracle Linux version 8 (nodejs)	ELSA-2023-4035	2023-07-19
Oracle Linux version 8 (nodejs-nodemon)	ELSA-2023-4034	2023-07-19
Oracle Linux version 8 (nodejs-nodemon)	ELSA-2023-4035	2023-07-19
Oracle Linux version 8 (nodejs-packaging)	ELSA-2023-4034	2023-07-19
Oracle Linux version 8 (nodejs-packaging)	ELSA-2023-4035	2023-07-19
Oracle Linux version 9 (c-ares)	ELSA-2023-6635	2023-11-11
Oracle Linux version 9 (nodejs)	ELSA-2023-3577	2023-06-15
Oracle Linux version 9 (nodejs)	ELSA-2023-3586	2023-06-15
Oracle Linux version 9 (nodejs-nodemon)	ELSA-2023-3577	2023-06-15
Oracle Linux version 9 (nodejs-packaging)	ELSA-2023-3577	2023-06-15