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CVE-2021-36089

Date: June 30, 2021

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).

Language: C++

Severity Score

7.8

Related Resources (7)

Url: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544

Url: https://security-tracker.debian.org/tracker/CVE-2021-36089

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-36089

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-36089

Url: https://github.com/GrokImageCompression/grok/releases

Url: https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yaml

Url: https://www.mend.io/vulnerability-database/CVE-2021-36089

Severity Score

7.8

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	6.8
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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