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CERTFR-2021-AVI-551
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans le noyau Linux de RedHat. 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 (pour IBM Power LE) - Update Services pour SAP Solutions 8.1 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder pour x86_64 - Extended Update Support 8.1 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Real Time - Telecommunications Update Service 8.2 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Update Services pour SAP Solutions 7.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Update Services pour SAP Solutions 8.1 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder pour Power, little endian - Extended Update Support 8.1 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 7.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Real Time pour NFV - Telecommunications Update Service 8.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server (pour IBM Power LE) - Update Services pour SAP Solutions 7.4 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour IBM z Systems - Extended Update Support 8.1 s390x | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - TUS 7.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Real Time 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Power, little endian - Extended Update Support 8.1 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Real Time pour NFV 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Real Time - Telecommunications Update Service 8.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour x86_64 - Extended Update Support 8.1 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour Real Time pour NFV - Telecommunications Update Service 8.2 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder pour ARM 64 - Extended Update Support 8.1 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux pour ARM 64 - Extended Update Support 8.1 aarch64 |
References
| Title | Publication Time | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux Server (pour IBM Power LE) - Update Services pour SAP Solutions 8.1 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder pour x86_64 - Extended Update Support 8.1 x86_64",
"product": {
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"vendor": {
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"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Real Time - Telecommunications Update Service 8.2 x86_64",
"product": {
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"vendor": {
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"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Update Services pour SAP Solutions 7.4 x86_64",
"product": {
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"vendor": {
"name": "Red Hat",
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}
}
},
{
"description": "Red Hat Enterprise Linux Server - Update Services pour SAP Solutions 8.1 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder pour Power, little endian - Extended Update Support 8.1 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 7.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Real Time pour NFV - Telecommunications Update Service 8.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server (pour IBM Power LE) - Update Services pour SAP Solutions 7.4 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour IBM z Systems - Extended Update Support 8.1 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - TUS 7.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Real Time 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Power, little endian - Extended Update Support 8.1 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Real Time pour NFV 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Real Time - Telecommunications Update Service 8.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour x86_64 - Extended Update Support 8.1 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour Real Time pour NFV - Telecommunications Update Service 8.2 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder pour ARM 64 - Extended Update Support 8.1 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux pour ARM 64 - Extended Update Support 8.1 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"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-2021-33034",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33034"
},
{
"name": "CVE-2020-25704",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25704"
},
{
"name": "CVE-2020-35508",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-35508"
},
{
"name": "CVE-2021-33909",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33909"
},
{
"name": "CVE-2021-3347",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3347"
},
{
"name": "CVE-2020-28374",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28374"
},
{
"name": "CVE-2021-32399",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-32399"
},
{
"name": "CVE-2020-26541",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26541"
}
],
"links": [],
"reference": "CERTFR-2021-AVI-551",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-07-21T00:00:00.000000"
}
],
"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\nRedHat. 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 RedHat",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2021:2722 du 20 juillet 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:2722"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2021:2715 du 20 juillet 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:2715"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2021:2719 du 20 juillet 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:2719"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2021:2732 du 20 juillet 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:2732"
}
]
}
CVE-2020-25704 (GCVE-0-2020-25704)
Vulnerability from cvelistv5 – Published: 2020-12-02 00:00 – Updated: 2024-08-04 15:40
VLAI?
EPSS
Summary
A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service.
Severity ?
No CVSS data available.
CWE
Assigner
References
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CVE-2021-33034 (GCVE-0-2021-33034)
Vulnerability from cvelistv5 – Published: 2021-05-14 22:57 – Updated: 2024-08-03 23:42
VLAI?
EPSS
Summary
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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CVE-2021-3347 (GCVE-0-2021-3347)
Vulnerability from cvelistv5 – Published: 2021-01-29 16:56 – Updated: 2025-07-24 03:55
VLAI?
EPSS
Summary
An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2020-28374 (GCVE-0-2020-28374)
Vulnerability from cvelistv5 – Published: 2021-01-13 03:07 – Updated: 2024-08-04 16:33
VLAI?
EPSS
Summary
In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2021-33909 (GCVE-0-2021-33909)
Vulnerability from cvelistv5 – Published: 2021-07-20 18:01 – Updated: 2024-08-04 00:05
VLAI?
EPSS
Summary
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-35508 (GCVE-0-2020-35508)
Vulnerability from cvelistv5 – Published: 2021-03-26 16:45 – Updated: 2024-08-04 17:02
VLAI?
EPSS
Summary
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Severity ?
No CVSS data available.
CWE
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|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-26541 (GCVE-0-2020-26541)
Vulnerability from cvelistv5 – Published: 2020-10-02 18:14 – Updated: 2024-08-04 15:56
VLAI?
EPSS
Summary
The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.
Severity ?
6.5 (Medium)
CWE
- n/a
Assigner
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CVE-2021-32399 (GCVE-0-2021-32399)
Vulnerability from cvelistv5 – Published: 2021-05-10 21:19 – Updated: 2024-08-03 23:17
VLAI?
EPSS
Summary
net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
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"name": "https://security.netapp.com/advisory/ntap-20210622-0006/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20210622-0006/"
},
{
"name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
},
{
"name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-32399",
"datePublished": "2021-05-10T21:19:16",
"dateReserved": "2021-05-07T00:00:00",
"dateUpdated": "2024-08-03T23:17:29.394Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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