CVE-2018-10846

Description

A cache-based side channel attack was found in the way GnuTLS implements CBC-mode cipher suites. An attacker could use a combination of "Just in Time" Prime+probe and Lucky-13 attacks to recover plain text in a cross-VM attack scenario.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score5.35.65.3
Attack VectorLocalLocalLocal
Attack ComplexityHighHighHigh
Privileges RequiredLowLowLow
User InteractionRequiredNoneRequired
ScopeChangedChangedChanged
ConfidentialityHighHighHigh
Integrity ImpactNoneNoneNone
Availability ImpactNoneNoneNone

Vector

Red Hat: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

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

cve.org: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

Understanding the Weakness (CWE)

CWE-327

Confidentiality

Technical Impact: Read Application Data

The confidentiality of sensitive data may be compromised by the use of a broken or risky cryptographic algorithm.

Integrity

Technical Impact: Modify Application Data

The integrity of sensitive data may be compromised by the use of a broken or risky cryptographic algorithm.

Accountability,Non-Repudiation

Technical Impact: Hide Activities

If the cryptographic algorithm is used to ensure the identity of the source of the data (such as digital signatures), then a broken algorithm will compromise this scheme and the source of the data cannot be proven.

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