CVE-2018-16150

In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification does not reject excess data after the hash value

published November 7, 2018

CVSS
—
EPSS
1%
Percentile
47.6
In the wild
Unconfirmed
What it is

In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification does not reject excess data after the hash value. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation through fake X.509 certificates. This is a variant of CVE-2006-4340.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00593 · 47.6th percentile
Published
2018-11-07T20:00Z
EPSS history
Timeline
  • 07 NOV 20:00Z
    In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification does not reject excess data after the hash value
    cvelistv5