CVE-2018-19975 - Vulnerability Details - OpenCVE

Description

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c. Specifically, OP_COUNT can read a DWORD.

Published: 2018-12-17

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:virustotal:yara:3.8.1:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2018-11642	In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c. Specifically, OP_COUNT can read a DWORD.
Ubuntu USN	USN-8080-1	YARA vulnerabilities

No CVSS v4.0

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Complete

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00255.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://bnbdr.github.io/posts/extracheese/
https://github.com/VirusTotal/yara/issues/999
https://github.com/bnbdr/swisscheese/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/

History

No history.

Subscriptions

Virustotal Yara

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-12-17T18:00:00.000Z

Updated: 2024-08-05T11:51:17.938Z

Reserved: 2018-12-08T00:00:00.000Z

Link: CVE-2018-19975

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-12-17T19:29:01.437

Modified: 2024-11-21T03:58:55.360

Link: CVE-2018-19975

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

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