CVE-2022-40281 Explained : Impact and Mitigation
Discover the impact of CVE-2022-40281 in Samsung TizenRT versions 3.0_GBM and 3.1_PRE. Learn how a missing X509_free step after SSL_get_peer_certificate leads to information disclosure.
An issue was discovered in Samsung TizenRT through 3.0_GBM (and 3.1_PRE). The vulnerability exists in cyassl_connect_step2 in curl/vtls/cyassl.c due to a missing X509_free after SSL_get_peer_certificate, resulting in information disclosure.
Understanding CVE-2022-40281
This CVE involves a vulnerability in Samsung TizenRT that could potentially lead to information disclosure.
What is CVE-2022-40281?
The issue in Samsung TizenRT through versions 3.0_GBM and 3.1_PRE occurs due to a missing X509_free after SSL_get_peer_certificate, allowing for information disclosure.
The Impact of CVE-2022-40281
The vulnerability can be exploited by malicious actors to obtain sensitive information through the disclosed data.
Technical Details of CVE-2022-40281
This section delves into the specifics of the vulnerability in Samsung TizenRT.
Vulnerability Description
The vulnerability in cyassl_connect_step2 in curl/vtls/cyassl.c is caused by not freeing X509 after SSL_get_peer_certificate, which opens up the possibility of information disclosure.
Affected Systems and Versions
Samsung TizenRT versions through 3.0_GBM (and 3.1_PRE) are impacted by this vulnerability.
Exploitation Mechanism
Malicious actors can exploit this vulnerability to extract sensitive information by leveraging the missing X509_free step after SSL_get_peer_certificate.
Mitigation and Prevention
Protecting systems from CVE-2022-40281 involves taking immediate and proactive security measures.
Immediate Steps to Take
- Update Samsung TizenRT to a patched version or apply the necessary fixes provided by the vendor.
- Monitor network traffic for any signs of unauthorized information disclosure.
Long-Term Security Practices
- Regularly update software and firmware to mitigate known vulnerabilities.
- Conduct security audits and assessments to identify and address potential security gaps.
Patching and Updates
Stay informed about security advisories and patches released by Samsung to address the CVE-2022-40281 vulnerability.