CVE-2018-16868CWE-203

A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data

Medium · published December 3, 2018

CVSS v3.0
4.7
EPSS
1%
Percentile
46.5
In the wild
Unconfirmed
What it is

A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

The record
Technical detail
CVSS v3.0
4.7 · MEDIUM
Vector
CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00577 · 46.5th percentile
Weakness
CWE-203 · Observable Discrepancy
Published
2018-12-03T14:00Z
EPSS history
Timeline
  • 03 DEC 14:00Z
    A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data
    cvelistv5