🛡️ AZL-78561 — openssl-fips-provider

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2023-6237 affecting package openssl-fips-provider 3.1.2-1

Issue summary: Checking excessively long invalid RSA public keys may take

a long time.

Impact summary: Applications that use the function EVP_PKEY_public_check()

to check RSA public keys may experience long delays. Where the key that

is being checked has been obtained from an untrusted source this may lead

to a Denial of Service.

When function EVP_PKEY_public_check() is called on RSA public keys,

a computation is done to confirm that the RSA modulus, n, is composite.

For valid RSA keys, n is a product of two or more large primes and this

computation completes quickly. However, if n is an overly large prime,

then this computation would take a long time.

An application that calls EVP_PKEY_public_check() and supplies an RSA key

obtained from an untrusted source could be vulnerable to a Denial of Service

attack.

The function EVP_PKEY_public_check() is not called from other OpenSSL

functions however it is called from the OpenSSL pkey command line

application. For that reason that application is also vulnerable if used

with the '-pubin' and '-check' options on untrusted data.

The OpenSSL SSL/TLS implementation is not affected by this issue.

The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.

Affected software

AZL-78561 is recorded against 1 package.

  • openssl-fips-provider

Timeline and source

Published on 25 April 2024 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-04-25
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
openssl-fips-provider — —

Similar Threats

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