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CERTFR-2021-AVI-436
Vulnerability from certfr_avis - Published: 2021-06-07 - Updated: 2021-06-07
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service 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
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 20.10",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 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-2021-29264",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29264"
},
{
"name": "CVE-2020-25672",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25672"
},
{
"name": "CVE-2021-30002",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-30002"
},
{
"name": "CVE-2021-3483",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3483"
},
{
"name": "CVE-2021-31916",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-31916"
},
{
"name": "CVE-2021-29647",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29647"
},
{
"name": "CVE-2021-28971",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28971"
},
{
"name": "CVE-2021-28952",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28952"
},
{
"name": "CVE-2021-28038",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28038"
},
{
"name": "CVE-2020-25671",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25671"
},
{
"name": "CVE-2021-28950",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28950"
},
{
"name": "CVE-2021-28688",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28688"
},
{
"name": "CVE-2021-29155",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29155"
},
{
"name": "CVE-2020-25670",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25670"
},
{
"name": "CVE-2021-28972",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28972"
},
{
"name": "CVE-2021-28660",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28660"
},
{
"name": "CVE-2021-33200",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33200"
},
{
"name": "CVE-2021-28964",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28964"
},
{
"name": "CVE-2021-33033",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33033"
},
{
"name": "CVE-2021-31829",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-31829"
},
{
"name": "CVE-2021-3501",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3501"
},
{
"name": "CVE-2020-25673",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25673"
}
],
"initial_release_date": "2021-06-07T00:00:00",
"last_revision_date": "2021-06-07T00:00:00",
"links": [],
"reference": "CERTFR-2021-AVI-436",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-06-07T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "D\u00e9ni de service"
},
{
"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. Elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de\ncode arbitraire, un d\u00e9ni de service et une atteinte \u00e0 la confidentialit\u00e9\ndes donn\u00e9es.\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-4982-1 du 03 juin 2021",
"url": "https://ubuntu.com/security/notices/USN-4982-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4984-1 du 04 juin 2021",
"url": "https://ubuntu.com/security/notices/USN-4984-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4983-1 du 03 juin 2021",
"url": "https://ubuntu.com/security/notices/USN-4983-1"
}
]
}
CVE-2021-28971 (GCVE-0-2021-28971)
Vulnerability from cvelistv5 – Published: 2021-03-22 16:53 – Updated: 2024-08-03 21:55
VLAI
EPSS
Summary
In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.netapp.com/advisory/ntap-2021043… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-28972 (GCVE-0-2021-28972)
Vulnerability from cvelistv5 – Published: 2021-03-22 16:53 – Updated: 2024-08-03 21:55
VLAI
EPSS
Summary
In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.netapp.com/advisory/ntap-2021043… | x_refsource_CONFIRM |
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CVE-2021-29155 (GCVE-0-2021-29155)
Vulnerability from cvelistv5 – Published: 2021-04-20 00:00 – Updated: 2024-08-03 22:02
VLAI
EPSS
Summary
An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
14 references
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CVE-2021-29264 (GCVE-0-2021-29264)
Vulnerability from cvelistv5 – Published: 2021-03-26 21:35 – Updated: 2024-08-03 22:02
VLAI
EPSS
Summary
An issue was discovered in the Linux kernel through 5.11.10. drivers/net/ethernet/freescale/gianfar.c in the Freescale Gianfar Ethernet driver allows attackers to cause a system crash because a negative fragment size is calculated in situations involving an rx queue overrun when jumbo packets are used and NAPI is enabled, aka CID-d8861bab48b6.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/s… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-29647 (GCVE-0-2021-29647)
Vulnerability from cvelistv5 – Published: 2021-03-30 20:36 – Updated: 2024-08-03 22:11
VLAI
EPSS
Summary
An issue was discovered in the Linux kernel before 5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows attackers to obtain sensitive information from kernel memory because of a partially uninitialized data structure, aka CID-50535249f624.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-30002 (GCVE-0-2021-30002)
Vulnerability from cvelistv5 – Published: 2021-04-02 04:18 – Updated: 2024-08-03 22:24
VLAI
EPSS
Summary
An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka CID-fb18802a338b.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://bugzilla.suse.com/show_bug.cgi?id=1184120 | x_refsource_MISC |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
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CVE-2021-31829 (GCVE-0-2021-31829)
Vulnerability from cvelistv5 – Published: 2021-05-06 15:43 – Updated: 2024-08-03 23:10
VLAI
EPSS
Summary
kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/05/04/4 | mailing-listx_refsource_MLIST |
| https://github.com/torvalds/linux/commit/801c6058… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-31916 (GCVE-0-2021-31916)
Vulnerability from cvelistv5 – Published: 2021-05-06 16:14 – Updated: 2024-08-03 23:10
VLAI
EPSS
Summary
An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1946965 | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/4edbe1d7… | x_refsource_MISC |
| https://seclists.org/oss-sec/2021/q1/268 | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-33033 (GCVE-0-2021-33033)
Vulnerability from cvelistv5 – Published: 2021-05-14 22:57 – Updated: 2024-08-03 23:42
VLAI
EPSS
Summary
The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://syzkaller.appspot.com/bug?id=96e7d345748d… | x_refsource_MISC |
| https://sites.google.com/view/syzscope/kasan-use-… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
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CVE-2021-33200 (GCVE-0-2021-33200)
Vulnerability from cvelistv5 – Published: 2021-05-27 00:00 – Updated: 2024-08-03 23:42
VLAI
EPSS
Summary
kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
- 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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