CVE-2024-4603
Description
A flaw was found in OpenSSL. Applications that use the EVP_PKEY_param_check() or EVP_PKEY_public_check() function to check a DSA public key or DSA parameters may experience long delays when checking excessively long DSA keys or parameters. In applications that allow untrusted sources to provide the key or parameters that are checked, an attacker may be able to cause a denial of service. These functions are not called by OpenSSL on untrusted DSA keys. The applications that directly call these functions are the ones that may be vulnerable to this issue.
Statement
Only OpenSSL 3.3, 3.2, 3.1 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.
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 | 5.3 | N/A | 5.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | Low | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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