gsd-2022-3643
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-3643",
"id": "GSD-2022-3643",
"references": [
"https://advisories.mageia.org/CVE-2022-3643.html",
"https://www.suse.com/security/cve/CVE-2022-3643.html",
"https://ubuntu.com/security/CVE-2022-3643"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2022-3643"
],
"details": "Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.",
"id": "GSD-2022-3643",
"modified": "2023-12-13T01:19:40.108721Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"CVE_data_meta": {
"ASSIGNER": "security@xen.org",
"ID": "CVE-2022-3643",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "?",
"version_value": "consult Xen advisory XSA-423"
}
]
}
}
]
},
"vendor_name": "Linux"
}
]
}
},
"configuration": {
"configuration_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "All systems using a Linux based network backend with kernel 3.19 and\nnewer are vulnerable. Systems using other network backends are not\nknown to be vulnerable.\n\nSystems using Cisco (enic driver) and Broadcom NetXtrem II BCM5780\n(bnx2x driver) NICs for guest network access are known to be vulnerable.\nSystems using other NICs for guest network access cannot be ruled out\nto be vulnerable."
}
]
}
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior."
}
]
},
"impact": {
"impact_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "An unprivileged guest can cause network Denial of Service (DoS) of the\nhost by sending network packets to the backend causing the related\nphysical NIC to reset, abort, or crash.\n\nData corruption or privilege escalation seem unlikely but have not been\nruled out."
}
]
}
}
},
"problemtype": {
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"description": [
{
"lang": "eng",
"value": "unknown"
}
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"name": "https://xenbits.xenproject.org/xsa/advisory-423.txt",
"refsource": "MISC",
"url": "https://xenbits.xenproject.org/xsa/advisory-423.txt"
},
{
"name": "[oss-security] 20221207 Xen Security Advisory 423 v2 (CVE-2022-3643) - Guests can trigger NIC interface reset/abort/crash via netback",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2022/12/07/2"
},
{
"name": "[debian-lts-announce] 20221222 [SECURITY] [DLA 3244-1] linux-5.10 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html"
},
{
"name": "[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html"
},
{
"name": "http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html"
}
]
},
"workaround": {
"workaround_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "Using another PV network backend (e.g. the qemu based \"qnic\" backend)\nwill mitigate the problem.\n\nUsing a dedicated network driver domain per guest will mitigate the\nproblem."
}
]
}
}
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"children": [
{
"children": [],
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"cpe_name": [],
"versionEndExcluding": "4.9.336",
"versionStartIncluding": "3.19",
"vulnerable": true
},
{
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"versionEndExcluding": "4.14.302",
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"cpe_match": [],
"operator": "AND"
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"cpe_match": [
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"cve": {
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"ID": "CVE-2022-3643"
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"description": {
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"value": "Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior."
}
]
},
"problemtype": {
"problemtype_data": [
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"description": [
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"value": "CWE-74"
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"name": "https://xenbits.xenproject.org/xsa/advisory-423.txt",
"refsource": "MISC",
"tags": [
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"url": "https://xenbits.xenproject.org/xsa/advisory-423.txt"
},
{
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"refsource": "MLIST",
"tags": [
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"url": "http://www.openwall.com/lists/oss-security/2022/12/07/2"
},
{
"name": "[debian-lts-announce] 20221222 [SECURITY] [DLA 3244-1] linux-5.10 security update",
"refsource": "MLIST",
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"Mailing List",
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],
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},
{
"name": "[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update",
"refsource": "MLIST",
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{
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"refsource": "",
"tags": [],
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}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 4.0
}
},
"lastModifiedDate": "2023-11-29T15:15Z",
"publishedDate": "2022-12-07T01:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.