Vulnerability Monitor

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CVE-2021-36089

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).

Published

2021-07-01T03:15:08.883

Last Modified

2024-11-21T06:13:07.967

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	zope	grok	≤ 9.2.0	Yes
Operating System	linux	linux_kernel	-	No

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/GrokImageCompression/grok/releases Release Notes, Third Party Advisory ([email protected])
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yaml Third Party Advisory ([email protected])
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33544 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/GrokImageCompression/grok/releases Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-677.yaml Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)