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OpenAdvisories
Medium ALAS2023-2024-520 2 CVEs

Moderate: openssl security update (Amazon Linux 2023)

Published Feb 15, 2024 · Updated Feb 19, 2024

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2024-0727: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack The package openssl098e is provided purely for binary compatibility with older Amazon Linux versions. It does not receive security updates. CVE-2023-6237: A flaw was found in OpenSSL. When the EVP_PKEY_public_check() function is called in 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 a large prime, this computation takes 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.

Fixed packages 9

ReleasePackageFixed in
Amazon Linux · 2023 openssl 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-debuginfo 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-debugsource 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-devel 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-libs 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-libs-debuginfo 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-perl 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-snapsafe-libs 1:3.0.8-1.amzn2023.0.11
Amazon Linux · 2023 openssl-snapsafe-libs-debuginfo 1:3.0.8-1.amzn2023.0.11

Vulnerabilities 2

  • Medium 5.9

    Excessive time spent checking invalid RSA public keys

    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…

  • Medium 5.5

    PKCS12 Decoding crashes

    Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in …

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2023-6237.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-0727.html