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CERTFR-2022-AVI-527
Vulnerability from certfr_avis - Published: 2022-06-08 - Updated: 2022-06-08
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 21.10",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 22.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2022-30594",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30594"
},
{
"name": "CVE-2022-1195",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1195"
},
{
"name": "CVE-2022-30787",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30787"
},
{
"name": "CVE-2022-28356",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-28356"
},
{
"name": "CVE-2022-30784",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30784"
},
{
"name": "CVE-2022-23037",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23037"
},
{
"name": "CVE-2022-23042",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23042"
},
{
"name": "CVE-2022-1651",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1651"
},
{
"name": "CVE-2022-0168",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0168"
},
{
"name": "CVE-2022-30783",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30783"
},
{
"name": "CVE-2022-30786",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30786"
},
{
"name": "CVE-2022-23036",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23036"
},
{
"name": "CVE-2022-30789",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30789"
},
{
"name": "CVE-2022-1016",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1016"
},
{
"name": "CVE-2022-23038",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23038"
},
{
"name": "CVE-2022-21499",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-21499"
},
{
"name": "CVE-2022-30788",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30788"
},
{
"name": "CVE-2022-26966",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26966"
},
{
"name": "CVE-2021-3772",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3772"
},
{
"name": "CVE-2022-1048",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1048"
},
{
"name": "CVE-2022-1972",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1972"
},
{
"name": "CVE-2022-1966",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1966"
},
{
"name": "CVE-2022-23039",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23039"
},
{
"name": "CVE-2022-23040",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23040"
},
{
"name": "CVE-2022-1011",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1011"
},
{
"name": "CVE-2022-1012",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1012"
},
{
"name": "CVE-2022-23041",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-23041"
},
{
"name": "CVE-2022-24958",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-24958"
},
{
"name": "CVE-2022-1734",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1734"
},
{
"name": "CVE-2022-1836",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1836"
},
{
"name": "CVE-2022-1419",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1419"
},
{
"name": "CVE-2022-1671",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1671"
},
{
"name": "CVE-2022-1353",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1353"
},
{
"name": "CVE-2022-28388",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-28388"
},
{
"name": "CVE-2022-28389",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-28389"
},
{
"name": "CVE-2022-1205",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1205"
},
{
"name": "CVE-2021-4149",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4149"
},
{
"name": "CVE-2022-1158",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1158"
},
{
"name": "CVE-2022-1199",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1199"
},
{
"name": "CVE-2022-1204",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1204"
},
{
"name": "CVE-2022-29968",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-29968"
},
{
"name": "CVE-2021-46790",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-46790"
},
{
"name": "CVE-2021-4197",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4197"
},
{
"name": "CVE-2022-28390",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-28390"
},
{
"name": "CVE-2022-1263",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1263"
},
{
"name": "CVE-2022-1516",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1516"
},
{
"name": "CVE-2022-1198",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1198"
},
{
"name": "CVE-2022-30785",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-30785"
}
],
"initial_release_date": "2022-06-08T00:00:00",
"last_revision_date": "2022-06-08T00:00:00",
"links": [],
"reference": "CERTFR-2022-AVI-527",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2022-06-08T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0\ndistance et un contournement de la politique de s\u00e9curit\u00e9.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5467-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5467-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5471-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5471-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5463-1 du 07 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5463-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5470-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5470-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5468-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5468-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5469-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5469-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5465-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5465-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5466-1 du 08 juin 2022",
"url": "https://ubuntu.com/security/notices/USN-5466-1"
}
]
}
CVE-2022-1671 (GCVE-0-2022-1671)
Vulnerability from cvelistv5 – Published: 2022-07-26 16:36 – Updated: 2024-08-03 00:10
VLAI
EPSS
Summary
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
Severity
No CVSS data available.
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022090… | x_refsource_CONFIRM |
| https://security.netapp.com/advisory/ntap-2022090… | x_refsource_CONFIRM |
Impacted products
{
"containers": {
"adp": [
{
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"dateUpdated": "2024-08-03T00:10:03.786Z",
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87"
},
{
"tags": [
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"url": "https://security.netapp.com/advisory/ntap-20220901-0008/"
},
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"url": "https://security.netapp.com/advisory/ntap-20220901-0004/"
}
],
"title": "CVE Program Container"
}
],
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{
"product": "Kernel",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Linux kernel version prior to kernel 5.18 rc1"
}
]
}
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"descriptions": [
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"lang": "en",
"value": "A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information."
}
],
"problemTypes": [
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"cweId": "CWE-476",
"description": "CWE-476",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-09-01T13:06:27.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://security.netapp.com/advisory/ntap-20220901-0008/"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://security.netapp.com/advisory/ntap-20220901-0004/"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2022-1671",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Kernel",
"version": {
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"name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87",
"refsource": "MISC",
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"datePublished": "2022-07-26T16:36:01.000Z",
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CVE-2022-1734 (GCVE-0-2022-1734)
Vulnerability from cvelistv5 – Published: 2022-05-18 16:28 – Updated: 2024-08-03 00:16
VLAI
EPSS
Summary
A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use after free both read or write when non synchronized between cleanup routine and firmware download routine.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/torvalds/linux/commit/d270453a… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2022/06/05/4 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2022/06/09/1 | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2022/dsa-5173 | vendor-advisoryx_refsource_DEBIAN |
| https://security.netapp.com/advisory/ntap-2022070… | x_refsource_CONFIRM |
Impacted products
{
"containers": {
"adp": [
{
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"dateUpdated": "2024-08-03T00:16:58.793Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"url": "https://github.com/torvalds/linux/commit/d270453a0d9ec10bb8a802a142fb1b3601a83098"
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{
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"url": "http://www.openwall.com/lists/oss-security/2022/06/05/4"
},
{
"name": "[oss-security] 20220609 Re: Linux kernel: UAF, null-ptr-deref and double-free vulnerabilities in nfcmrvl module",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2022/06/09/1"
},
{
"name": "[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html"
},
{
"name": "DSA-5173",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2022/dsa-5173"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20220707-0007/"
}
],
"title": "CVE Program Container"
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"url": "https://github.com/torvalds/linux/commit/d270453a0d9ec10bb8a802a142fb1b3601a83098"
},
{
"name": "[oss-security] 20220605 Re: Linux kernel: UAF, null-ptr-deref and double-free vulnerabilities in nfcmrvl module",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2022/06/05/4"
},
{
"name": "[oss-security] 20220609 Re: Linux kernel: UAF, null-ptr-deref and double-free vulnerabilities in nfcmrvl module",
"tags": [
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"url": "http://www.openwall.com/lists/oss-security/2022/06/09/1"
},
{
"name": "[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update",
"tags": [
"mailing-list",
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"url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html"
},
{
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"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
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CVE-2022-1836 (GCVE-0-2022-1836)
Vulnerability from cvelistv5 – Published: 2022-06-19 21:21 – Updated: 2022-06-19 21:21
VLAI
EPSS
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-33981. Reason: This candidate is a reservation duplicate of CVE-2022-33981. Notes: All CVE users should reference CVE-2022-33981 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
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CVE-2022-1966 (GCVE-0-2022-1966)
Vulnerability from cvelistv5 – Published: 2022-06-06 18:01 – Updated: 2025-02-13 15:46
VLAI
EPSS
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-32250. Reason: This candidate is a duplicate of CVE-2022-32250. Notes: All CVE users should reference CVE-2022-32250 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.
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CVE-2022-1972 (GCVE-0-2022-1972)
Vulnerability from cvelistv5 – Published: 2022-09-14 18:59 – Updated: 2022-09-14 18:59
VLAI
EPSS
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-2078. Reason: This candidate is a reservation duplicate of CVE-2022-2078. Notes: All CVE users should reference CVE-2022-2078 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
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CVE-2022-21499 (GCVE-0-2022-21499)
Vulnerability from cvelistv5 – Published: 2022-06-09 20:15 – Updated: 2024-09-24 20:05
VLAI
EPSS
Summary
KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://git.kernel.org/linus/eadb2f47a3ced5c64b23… | x_refsource_MISC |
| https://www.debian.org/security/2022/dsa-5161 | vendor-advisoryx_refsource_DEBIAN |
| http://packetstormsecurity.com/files/168191/Kerne… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | Oracle Linux |
Affected:
Oracle Linux: 6
Affected: Oracle Linux: 7 Affected: Oracle Linux: 8 |
|
| Oracle Corporation | Oracle VM |
Affected:
Oracle VM: 3
|
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CVE-2022-23036 (GCVE-0-2022-23036)
Vulnerability from cvelistv5 – Published: 2022-03-10 19:20 – Updated: 2024-08-03 03:28
VLAI
EPSS
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
Severity
No CVSS data available.
CWE
- unknown
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| unspecified | unspecified |
Unknown:
consult Xen advisory XSA-396
|
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CVE-2022-23037 (GCVE-0-2022-23037)
Vulnerability from cvelistv5 – Published: 2022-03-10 19:20 – Updated: 2024-08-03 03:28
VLAI
EPSS
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
Severity
No CVSS data available.
CWE
- unknown
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC |
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| unspecified | unspecified |
Unknown:
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CVE-2022-23038 (GCVE-0-2022-23038)
Vulnerability from cvelistv5 – Published: 2022-03-10 19:20 – Updated: 2024-08-03 03:28
VLAI
EPSS
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
Severity
No CVSS data available.
CWE
- unknown
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
Impacted products
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"value": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn\u0027t check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042"
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CVE-2022-23039 (GCVE-0-2022-23039)
Vulnerability from cvelistv5 – Published: 2022-03-10 19:20 – Updated: 2024-08-03 03:28
VLAI
EPSS
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
Severity
No CVSS data available.
CWE
- unknown
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| unspecified | unspecified |
Unknown:
consult Xen advisory XSA-396
|
Credits
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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