CVE-2018-10846 Information

Description

A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of \Just in Time\ Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Reference

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-2018-10846 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 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/ https://usn.ubuntu.com/3999-1/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.6