CVE-2022-48949 - Vulnerability Details

In the Linux kernel, the following vulnerability has been resolved: igb: Initialize mailbox message for VF reset When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. The memory, however, is allocated from the stack meaning that information may be leaked to the VM. Initialize the message buffer to 0 so that no information is passed to the VM in this case.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

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::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.1:::::::*
	cpe:2.3:o:linux:linux_kernel:6.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc7::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc8::::::
	cpe:2.3:o:linux:linux_kernel:6.1.1:::::::*

No data.

References

Link	Providers
https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e
https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d
https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4
https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29
https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1
https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8
https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a
https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4
https://lore.kernel.org/linux-cve-announce/2024102140-CVE-2022-48949-a7a1@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-48949
https://www.cve.org/CVERecord?id=CVE-2022-48949

History

Fri, 22 Nov 2024 15:45:00 +0000

Type	Values Removed	Values Added
Metrics	threat_severity `Moderate`	threat_severity `Low`

Tue, 29 Oct 2024 17:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
Weaknesses		CWE-908
CPEs		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.1.1:::::::* cpe:2.3:o:linux:linux_kernel:6.1:::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc3:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc4:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc5:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc6:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc7:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc8::::::
Vendors & Products		Linux Linux linux Kernel
Metrics	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}`

Tue, 22 Oct 2024 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 22 Oct 2024 13:15:00 +0000

Type	Values Removed	Values Added
References		https://lore.kernel.org/linux-cve-announce/2024102140-CVE-2022-48949-a7a1@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2022-48949 https://www.cve.org/CVERecord?id=CVE-2022-48949
Metrics	threat_severity `None`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}` threat_severity `Moderate`

Mon, 21 Oct 2024 20:15:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: igb: Initialize mailbox message for VF reset When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. The memory, however, is allocated from the stack meaning that information may be leaked to the VM. Initialize the message buffer to 0 so that no information is passed to the VM in this case.
Title		igb: Initialize mailbox message for VF reset
References		https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4 https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29 https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1 https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8 https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-10-21T20:05:37.782Z

Updated: 2025-05-04T08:26:44.707Z

Reserved: 2024-08-22T01:27:53.625Z

Link: CVE-2022-48949

Vulnrichment

Updated: 2024-10-22T13:21:56.291Z

NVD

Status : Analyzed

Published: 2024-10-21T20:15:06.337

Modified: 2024-10-29T16:32:41.797

Link: CVE-2022-48949

Redhat

Severity : Low

Publid Date: 2024-10-21T00:00:00Z

Links: CVE-2022-48949 - Bugzilla

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The memory, however, is allocated from the\nstack meaning that information may be leaked to the VM. Initialize the\nmessage buffer to 0 so that no information is passed to the VM in this\ncase."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igb: inicializar mensaje de buz\u00f3n para restablecer VF Cuando no se asigna una direcci\u00f3n MAC a la VF, esa parte del mensaje enviado a la VF no se configura. Sin embargo, la memoria se asigna desde la pila, lo que significa que la informaci\u00f3n puede filtrarse a la VM. Inicialice el b\u00fafer de mensajes a 0 para que no se pase informaci\u00f3n a la VM en este caso."}], "id": "CVE-2022-48949", "lastModified": "2024-10-29T16:32:41.797", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-10-21T20:15:06.337", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: igb: Initialize mailbox message for VF reset", "id": "2320667", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320667"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nigb: Initialize mailbox message for VF reset\nWhen a MAC address is not assigned to the VF, that portion of the message\nsent to the VF is not set. The memory, however, is allocated from the\nstack meaning that information may be leaked to the VM. Initialize the\nmessage buffer to 0 so that no information is passed to the VM in this\ncase."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module igb from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2022-48949", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48949\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48949\nhttps://lore.kernel.org/linux-cve-announce/2024102140-CVE-2022-48949-a7a1@gregkh/T"], "statement": "Only small memory leak possible for specific case, so security impact is limited.", "threat_severity": "Low"}

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

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