CVE-2018-10844

MEDIUM

Description

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.

References

http://www.securityfocus.com/bid/105138

https://access.redhat.com/errata/RHSA-2018:3050

https://access.redhat.com/errata/RHSA-2018:3505

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10844

https://eprint.iacr.org/2018/747

https://gitlab.com/gnutls/gnutls/merge_requests/657

https://lists.debian.org/debian-lts-announce/2018/10/msg00022.html

Details

Source: MITRE

Published: 2018-08-22

Updated: 2019-03-21

Type: CWE-310

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM