CVE-2021-36089

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompress::applyColour).

Grok versiones 7.6.6 hasta 9.2.0, presenta un desbordamiento de búfer basado en la región heap de la memoria en la función grk::FileFormatDecompress::apply_palette_clr (llamado desde grk::FileFormatDecompress::applyColour)

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-07-01 CVE Reserved
2021-07-01 CVE Published
2024-03-16 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source
https://github.com/GrokImageCompression/grok/releases	Release Notes
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yaml	Third Party Advisory

URL	Date	SRC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zope Search vendor "Zope"	Grok Search vendor "Zope" for product "Grok"	>= 7.6.6 <= 9.2.0 Search vendor "Zope" for product "Grok" and version " >= 7.6.6 <= 9.2.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe