CVE-2018-16868 — Vulnetix

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CVE-2018-16868 PUBLISHED

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.

EPSS 0.04% · 12.8th percentile

Risk Scores

EPSS Score

0.04%

12.8th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:Pro:18.04:LTS	gnutls28	3.5.18-1ubuntu1.6+esm2, 3.5.18-1ubuntu1.6+esm1, 3.5.18-1ubuntu1.6
Ubuntu:14.04:LTS	gnutls26	2.12.23-12ubuntu2.6, 2.12.23-1ubuntu4, 2.12.23-1ubuntu5
Ubuntu:Pro:16.04:LTS	gnutls28	3.4.10-4ubuntu1.8, 3.4.10-4ubuntu1.9, 3.4.10-4ubuntu1.9+esm1

Timeline

Dec 3, 2018 CVE Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Feb 25, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score
Aug 31, 2022 EPSS Score
Nov 1, 2022 EPSS Score
Jan 2, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2018-16868 third-party-advisory
http://cat.eyalro.net/ third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2018-16868 third-party-advisory

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