OpenSSL Security and Bug Fix Update
Summary
ALSA-2023:0946: Moderate: openssl security and bug fix update. Affects openssl versions < 1:3.0.1-47.el9_1. Fixed in 1:3.0.1-47.el9_1. How to fix ↓
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Background
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. It is widely used in various applications to provide secure communication and data encryption. However, several vulnerabilities have been discovered in OpenSSL that could potentially be exploited by attackers to compromise the security of affected systems.
Vulnerability Detail
The following vulnerabilities have been identified in OpenSSL:
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CVE-2022-4203: A read buffer overflow in X.509 certificate verification could allow an attacker to cause a denial of service or execute arbitrary code.
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CVE-2022-4304: A timing attack in RSA Decryption implementation could allow an attacker to recover the private key.
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CVE-2022-4450: A double free vulnerability after calling PEM_read_bio_ex could lead to a denial of service or potential code execution.
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CVE-2023-0215: A use-after-free vulnerability following BIO_new_NDEF could allow an attacker to execute arbitrary code.
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CVE-2023-0216: An invalid pointer dereference in d2i_PKCS7 functions could lead to a denial of service or potential code execution.
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CVE-2023-0217: A NULL dereference validating DSA public key could lead to a denial of service.
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CVE-2023-0286: An X.400 address type confusion in X.509 GeneralName could allow an attacker to execute arbitrary code.
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CVE-2023-0401: A NULL dereference during PKCS7 data verification could lead to a denial of service or potential code execution.
These vulnerabilities pose a moderate risk and could result in unauthorized access, data leakage, or system compromise if exploited.
How To Fix
Minimum fixed version
1:3.0.1-47.el9_1
This is the first release that contains the fix.
sudo dnf update opensslTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There are no known workarounds for these vulnerabilities. It is essential to apply the recommended fix by updating OpenSSL to the latest version.
Conclusion
OpenSSL is a widely used cryptographic library that has been found to have several vulnerabilities. To ensure the security of your systems, it is crucial to update OpenSSL to the latest version. For further assistance and support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for openssl →
FAQ
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.
These vulnerabilities could potentially allow attackers to execute arbitrary code, cause denial of service, or gain unauthorized access to sensitive information.
To fix these vulnerabilities, it is recommended to update OpenSSL to version 3.0.1-47.el9_1 or later. Follow the instructions provided by your operating system's package manager.
There are no known workarounds for these vulnerabilities. It is crucial to update OpenSSL to the latest version.
You can find more information about these vulnerabilities, including their impact and CVSS scores, on the CVE pages listed in the References section.
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