CVE-2018-16149

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Summary

CVECVE-2018-16149
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-11-07 20:29:00 UTC
Updated2019-01-31 15:04:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-347

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Axtls Project Axtls All All All All

References

ReferenceSourceLinkTags
axTLS Embedded SSL / Re: [axtls-general] Problems of PKCS#1 v1.5 RSA Signature Verification MLIST sourceforge.net Exploit, Patch, Third Party Advisory
Apply CVE fixes for X509 parsing · igrr/axtls-8266@5efe294 · GitHub CONFIRM github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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