CVE-2024-4603:The vulnerability identified as CVE-2024-4603 is related to OpenSSL. It involves excessive time spent checking DSA keys and parameters, which could potentially lead to a Denial of Service (DoS) attack.

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The vulnerability is found in the OpenSSL software, specifically in the functions EVP_PKEY_param_check() and EVP_PKEY_public_check(). These functions perform various checks on DSA parameters, and some of these computations can take a long time if the modulus (`p` parameter) is too large. OpenSSL does not limit the modulus size when performing these checks, which can lead to long delays. If the key or parameters being checked are obtained from an untrusted source, this could potentially lead to a Denial of Service (DoS) attack. 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.

Overview

The vulnerability was discovered by OSS-Fuzz and remediation was developed by Tomas Mraz. It affects OpenSSL versions 3.0.0 to 3.0.14, 3.1.0 to 3.1.6, 3.2.0 to 3.2.2, and 3.3.0 to 3.3.1. The vulnerability was published on 16th May 2024 and updated on 14th October 2024.

Remediation

Patches for the vulnerability have been released and can be found at the following URLs:

  • 3.0.14: https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397
  • 3.1.6: https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d
  • 3.2.2: https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740
  • 3.3.1: https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e

Users are advised to update their OpenSSL software to the latest version to mitigate this vulnerability.

References

  • OpenSSL Advisory: https://www.openssl.org/news/secadv/20240516.txt
  • OSS Security: http://www.openwall.com/lists/oss-security/2024/05/16/2
  • NetApp Security Advisory: https://security.netapp.com/advisory/ntap-20240621-0001/

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Manufacturing
    Manufacturing
  2. Health Care & Social Assistance
    Health Care & Social Assistance
  3. Public Administration
    Public Administration
  4. Educational Services
    Educational Services
  5. Finance and Insurance
    Finance and Insurance
  6. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  7. Transportation & Warehousing
    Transportation & Warehousing
  8. Utilities
    Utilities
  9. Retail Trade
    Retail Trade
  10. Other Services (except Public Administration)
    Other Services (except Public Administration)
  11. Information
    Information
  12. Management of Companies & Enterprises
    Management of Companies & Enterprises
  13. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  14. Accommodation & Food Services
    Accommodation & Food Services
  15. Construction
    Construction
  16. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  17. Mining
    Mining
  18. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  19. Wholesale Trade
    Wholesale Trade
  20. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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