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CVE-2018-16149

PoC —
CVSS 3.0
5.9 medium
EPSS
<1%p51
Published
()
Modified
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.

Vendors
axtls project
Products
axtls
Weakness
CWE-347
Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVE.org GitHub PoCs EPSS (0.7%)

In the news

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