CVE-2024-45158

moderate-risk
Published 2024-09-05

An issue was discovered in Mbed TLS 3.6 before 3.6.1. A stack buffer overflow in mbedtls_ecdsa_der_to_raw() and mbedtls_ecdsa_raw_to_der() can occur when the bits parameter is larger than the largest supported curve. In some configurations with PSA disabled, all values of bits are affected. (This never happens in internal library calls, but can affect applications that call these functions directly.)

Do I need to act?

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0.68% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Arm

References (3)

Release Notes https://github.com/Mbed-TLS/mbedtls/releases/
Vendor Advisory https://mbed-tls.readthedocs.io/en/latest/security-advisories/
Vendor Advisory https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-a...
39
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal