CVE-2021-43618
Description
A flaw was found in gmp. An integer overflow vulnerability could allow an attacker to input an integer value leading to a crash. The highest threat from this vulnerability is to system availability.
Statement
Exploitation is only possible on 32-bit systems. The susceptible GMP package is not tethered to the network stack, so it can only be exploited via a file already on the local system. This can be achieved either by the attacker gaining local login credentials or alternatively; by tricking a user into loading then executing a malicious file. Because of these combined reasons Red Hat Product Security rates the impact as Moderate.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.2 | 7.5 | N/A |
| Attack Vector | Local | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Red Hat CVSS v3 Score Explanation
This security flaw could be exploited using a local system, and the susceptible GMP package is not tethered to the network stack. In certain scenarios, the attacker might need local login credentials to exploit the vulnerability; alternatively, they could depend on user interaction to execute a malicious file.
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