CVE-2021-3600

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3600	Product
https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75391e4d950da74bb2bd90	Mailing List Patch Vendor Advisory
https://ubuntu.com/security/notices/USN-5003-1	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc5::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc6::::::
	cpe:2.3:o:linux:linux_kernel:5.11:rc7::::::

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::esm:::

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration 4 (hide)

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-01-08 19:15

Updated : 2024-01-11 18:40

NVD link : CVE-2021-3600

Mitre link : CVE-2021-3600

CVE.ORG link : CVE-2021-3600

JSON object : View

Products Affected

fedoraproject

fedora

redhat

enterprise_linux

canonical

ubuntu_linux

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-3600", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.1}]}, "published": "2024-01-08T19:15:08.470", "references": [{"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3600", "tags": ["Product"], "source": "security@ubuntu.com"}, {"url": "https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75391e4d950da74bb2bd90", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "security@ubuntu.com"}, {"url": "https://ubuntu.com/security/notices/USN-5003-1", "tags": ["Third Party Advisory"], "source": "security@ubuntu.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code."}, {"lang": "es", "value": "Se descubri\u00f3 que la implementaci\u00f3n de eBPF en el kernel de Linux no rastreaba adecuadamente la informaci\u00f3n de l\u00edmites para registros de 32 bits al realizar operaciones div y mod. Un atacante local podr\u00eda usar esto para posiblemente ejecutar c\u00f3digo arbitrario."}], "lastModified": "2024-01-11T18:40:05.340", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD710309-3897-495A-8AE3-4BD2EFA790E0", "versionEndExcluding": "4.19.206", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "63AA484E-2A18-4FCA-BA34-62E23959CC68", "versionEndExcluding": "5.4.98", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6C5091DA-0121-43C7-B18B-60A1917F30BF", "versionEndExcluding": "5.10.16", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "18B1C9CE-F7E4-426B-A770-79F86AB5CC38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A70E596-2EF7-4651-B2EF-2CEE31DB6893"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "18C82C96-2853-4DFE-93AD-F6E59B4129CA"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A330B043-47EA-4D06-82BF-153A1735FC11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0EE963C-B36C-4143-96A9-65BCA7D8F2EF"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B511E2F6-2917-4797-8909-8F7EA4870C7B"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.11:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E9FA9D80-C790-41EA-8A21-DF7B170465E0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "vulnerable": true, "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "vulnerable": true, "matchCriteriaId": "7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:esm:*:*:*", "vulnerable": true, "matchCriteriaId": "B3293E55-5506-4587-A318-D1734F781C09"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}