7.5 CVE-2024-6119

Issue summary: Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address resulting in abnormal termination of the application process. Impact summary: Abnormal termination of an application can a cause a denial of service. Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address when comparing the expected name with an `otherName` subject alternative name of an X.509 certificate. This may result in an exception that terminates the application program. Note that basic certificate chain validation (signatures, dates, ...) is not affected, the denial of service can occur only when the application also specifies an expected DNS name, Email address or IP address. TLS servers rarely solicit client certificates, and even when they do, they generally don't perform a name check against a reference identifier (expected identity), but rather extract the presented identity after checking the certificate chain. So TLS servers are generally not affected and the severity of the issue is Moderate. The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.
https://nvd.nist.gov/vuln/detail/CVE-2024-6119

Categories

CWE-843 : Access of Resource Using Incompatible Type ('Type Confusion')
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. Type confusion in CSS sequence leads to out-of-bounds read. Size inconsistency allows code execution, first discovered when it was actively exploited in-the-wild. Improperly-parsed file containing records of different types leads to code execution when a memory location is interpreted as a different object than intended.

References

 

CPE

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REMEDIATION

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EXPLOITS

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Exploit-db.com

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POC Github

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Other Nist (github, ...)

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CAPEC

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Common Attack Pattern Enumerations and Classifications

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