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CVE-2018-16149
Published: Nov 7, 2018
Modified: Aug 5, 2024
PUBLISHED
Description
In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification blindly trusts the declared lengths in the ASN.1 structure. Consequently, when small public exponents are being used, a remote attacker can generate purposefully crafted signatures (and put them on X.509 certificates) to induce illegal memory access and crash the verifier.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
[axtls-general] 20181105 Re: Problems of PKCS#1 v1.5 RSA Signature Verification
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