ID CVE-2018-16149
Summary 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.
References
Vulnerable Configurations
CVSS
Base: None
Impact:
Exploitability:
refmap via4
confirm https://github.com/igrr/axtls-8266/commit/5efe2947ab45e81d84b5f707c51d1c64be52f36c
mlist [axtls-general] 20181105 Re: Problems of PKCS#1 v1.5 RSA Signature Verification
Last major update 07-11-2018 - 15:29
Published 07-11-2018 - 15:29
Last modified 07-11-2018 - 15:29
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