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CERTFR-2021-AVI-833
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service, une atteinte à l'intégrité des données et une atteinte à la confidentialité des données.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
Vendor | Product | Description | ||
---|---|---|---|---|
Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 7.7 x86_64 | ||
Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.7 x86_64 | ||
Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.7 ppc64le | ||
Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - TUS 7.7 x86_64 |
References
Title | Publication Time | Tags | |||
---|---|---|---|---|---|
|
{ "$ref": "https://www.cert.ssi.gouv.fr/openapi.json", "affected_systems": [ { "description": "Red Hat Enterprise Linux Server - AUS 7.7 x86_64", "product": { "name": "Red Hat Enterprise Linux Server", "vendor": { "name": "Red Hat", "scada": false } } }, { "description": "Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.7 x86_64", "product": { "name": "Red Hat Enterprise Linux Server", "vendor": { "name": "Red Hat", "scada": false } } }, { "description": "Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.7 ppc64le", "product": { "name": "Red Hat Enterprise Linux Server", "vendor": { "name": "Red Hat", "scada": false } } }, { "description": "Red Hat Enterprise Linux Server - TUS 7.7 x86_64", "product": { "name": "Red Hat Enterprise Linux Server", "vendor": { "name": "Red Hat", "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-2020-36385", "url": "https://www.cve.org/CVERecord?id=CVE-2020-36385" }, { "name": "CVE-2021-3656", "url": "https://www.cve.org/CVERecord?id=CVE-2021-3656" }, { "name": "CVE-2021-22543", "url": "https://www.cve.org/CVERecord?id=CVE-2021-22543" }, { "name": "CVE-2019-20934", "url": "https://www.cve.org/CVERecord?id=CVE-2019-20934" }, { "name": "CVE-2021-37576", "url": "https://www.cve.org/CVERecord?id=CVE-2021-37576" }, { "name": "CVE-2021-3653", "url": "https://www.cve.org/CVERecord?id=CVE-2021-3653" } ], "initial_release_date": "2021-10-29T00:00:00", "last_revision_date": "2021-10-29T00:00:00", "links": [], "reference": "CERTFR-2021-AVI-833", "revisions": [ { "description": "Version initiale", "revision_date": "2021-10-29T00:00:00.000000" } ], "risks": [ { "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es" }, { "description": "D\u00e9ni de service" }, { "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es" }, { "description": "\u00c9l\u00e9vation de privil\u00e8ges" } ], "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de\nRed Hat. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nun d\u00e9ni de service, une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es et une\natteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.\n", "title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Red Hat", "vendor_advisories": [ { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2021:3987 du 26 octobre 2021", "url": "https://access.redhat.com/errata/RHSA-2021:3987" } ] }
CVE-2021-37576 (GCVE-0-2021-37576)
Vulnerability from cvelistv5
Published
2021-07-26 21:35
Modified
2024-08-04 01:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.
References
URL | Tags | ||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T01:23:01.298Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://lore.kernel.org/linuxppc-dev/87im0x1lqi.fsf%40mpe.ellerman.id.au/T/#u" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a" }, { "name": "[oss-security] 20210727 Re: Linux kernel: powerpc: KVM guest to host memory corruption", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2021/07/27/2" }, { "name": "FEDORA-2021-817b3d47d2", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2YZ2DNURMYYVDT2NYAFDESJC35KCUDS/" }, { "name": "FEDORA-2021-12618d9b08", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDFA7DSQIPM7XPNXJBXFWXHJFVUBCAG6/" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20210917-0005/" }, { "name": "DSA-4978", "tags": [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred" ], "url": "https://www.debian.org/security/2021/dsa-4978" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-09-25T14:06:26", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://lore.kernel.org/linuxppc-dev/87im0x1lqi.fsf%40mpe.ellerman.id.au/T/#u" }, { "tags": [ "x_refsource_MISC" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a" }, { "name": "[oss-security] 20210727 Re: Linux kernel: powerpc: KVM guest to host memory corruption", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "http://www.openwall.com/lists/oss-security/2021/07/27/2" }, { "name": "FEDORA-2021-817b3d47d2", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2YZ2DNURMYYVDT2NYAFDESJC35KCUDS/" }, { "name": "FEDORA-2021-12618d9b08", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDFA7DSQIPM7XPNXJBXFWXHJFVUBCAG6/" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://security.netapp.com/advisory/ntap-20210917-0005/" }, { "name": "DSA-4978", "tags": [ "vendor-advisory", "x_refsource_DEBIAN" ], "url": "https://www.debian.org/security/2021/dsa-4978" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-37576", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://lore.kernel.org/linuxppc-dev/87im0x1lqi.fsf@mpe.ellerman.id.au/T/#u", "refsource": "MISC", "url": "https://lore.kernel.org/linuxppc-dev/87im0x1lqi.fsf@mpe.ellerman.id.au/T/#u" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a" }, { "name": "[oss-security] 20210727 Re: Linux kernel: powerpc: KVM guest to host memory corruption", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/07/27/2" }, { "name": "FEDORA-2021-817b3d47d2", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z2YZ2DNURMYYVDT2NYAFDESJC35KCUDS/" }, { "name": "FEDORA-2021-12618d9b08", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WDFA7DSQIPM7XPNXJBXFWXHJFVUBCAG6/" }, { "name": "https://security.netapp.com/advisory/ntap-20210917-0005/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210917-0005/" }, { "name": "DSA-4978", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-4978" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-37576", "datePublished": "2021-07-26T21:35:58", "dateReserved": "2021-07-26T00:00:00", "dateUpdated": "2024-08-04T01:23:01.298Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
CVE-2021-3653 (GCVE-0-2021-3653)
Vulnerability from cvelistv5
Published
2021-09-29 19:41
Modified
2024-08-03 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
References
URL | Tags | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-22543 (GCVE-0-2021-22543)
Vulnerability from cvelistv5
Published
2021-05-26 10:30
Modified
2024-09-16 23:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Summary
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
References
URL | Tags | ||||||||||||||||||||||
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|
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Linux Kernel | Linux Kernel |
Version: add6a0cd1c5ba51b201e1361b05a5df817083618 |
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CVE-2019-20934 (GCVE-0-2019-20934)
Vulnerability from cvelistv5
Published
2020-11-28 06:20
Modified
2024-08-05 03:00
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.
References
URL | Tags | |
---|---|---|
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CVE-2021-3656 (GCVE-0-2021-3656)
Vulnerability from cvelistv5
Published
2022-03-04 18:41
Modified
2024-08-03 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.
References
URL | Tags | |
---|---|---|
|
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CVE-2020-36385 (GCVE-0-2020-36385)
Vulnerability from cvelistv5
Published
2021-06-07 00:00
Modified
2024-08-04 17:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
References
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T17:23:10.459Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6" }, { "tags": [ "x_transferred" ], "url": "https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1" }, { "tags": [ "x_transferred" ], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10" }, { "tags": [ "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20210720-0004/" }, { "tags": [ "x_transferred" ], "url": "https://www.starwindsoftware.com/security/sw-20220802-0002/" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2022-10-11T00:00:00", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "url": "https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6" }, { "url": "https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2" }, { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1" }, { "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10" }, { "url": "https://security.netapp.com/advisory/ntap-20210720-0004/" }, { "url": "https://www.starwindsoftware.com/security/sw-20220802-0002/" } ] } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-36385", "datePublished": "2021-06-07T00:00:00", "dateReserved": "2021-06-07T00:00:00", "dateUpdated": "2024-08-04T17:23:10.459Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- 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.
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