CVE-2023-2236

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.

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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4	Exploit Mailing List Patch
https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4	Exploit Patch
https://security.netapp.com/advisory/ntap-20230601-0010/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:::::::*

History

No history.

Information

Published : 2023-05-01 13:15

Updated : 2023-08-11 19:51

NVD link : CVE-2023-2236

Mitre link : CVE-2023-2236

CVE.ORG link : CVE-2023-2236

JSON object : View

Products Affected

linux

linux_kernel

netapp

hci_baseboard_management_controller

CWE

CWE-416

Use After Free

{"id": "CVE-2023-2236", "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": "cve-coordination@google.com", "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}]}, "published": "2023-05-01T13:15:44.850", "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4", "tags": ["Exploit", "Mailing List", "Patch"], "source": "cve-coordination@google.com"}, {"url": "https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4", "tags": ["Exploit", "Patch"], "source": "cve-coordination@google.com"}, {"url": "https://security.netapp.com/advisory/ntap-20230601-0010/", "tags": ["Vendor Advisory"], "source": "cve-coordination@google.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nBoth\u00a0io_install_fixed_file\u00a0and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\n\nWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.\n\n"}], "lastModified": "2023-08-11T19:51:06.083", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "96F47CB7-A27F-4316-BBC3-15AE6B5A0734", "versionEndExcluding": "6.0.11", "versionStartIncluding": "5.19"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "27227B35-932A-4035-B39F-6A455753C0D6"}, {"criteria": "cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "489D20B9-166F-423D-8C48-A23D3026E33B"}, {"criteria": "cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A4AD592C-222D-4C6F-B176-8145A1A5AFEC"}, {"criteria": "cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8603654B-A8A9-4DEB-B0DD-C82E1C885749"}, {"criteria": "cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C855C933-F271-45E6-8E85-8D7CF2EF1BE6"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}