Vulnerability-Lookup

oesa-2021-1310

Vulnerability from osv_openeuler

Published

2021-08-14 11:04

Modified

2026-08-06 11:04

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.(CVE-2021-3659)

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.(CVE-2021-37576)

A vulnerability was found in the Linux kernel in versions before v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.(CVE-2021-3655).

No description is available for this CVE.(CVE-2022-0850).

Severity

7.8 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3659	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-37576	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3655	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2022-0850	ADVISORY

JSON

To clipboard

{
  "affected": [
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      "ecosystem_specific": {
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  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nA NULL pointer dereference flaw was found in the Linux kernel\u2019s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.(CVE-2021-3659)\r\n\r\narch/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.(CVE-2021-37576)\r\n\r\nA vulnerability was found in the Linux kernel in versions before v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.(CVE-2021-3655).\n\nNo description is available for this CVE.(CVE-2022-0850).",
  "id": "OESA-2021-1310",
  "modified": "2026-08-06T11:04:33Z",
  "published": "2021-08-14T11:04:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1310"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3659"
    },
    {
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37576"
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    {
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0850"
    }
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  "schema_version": "1.7.2",
  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2021-3659",
    "CVE-2021-37576",
    "CVE-2021-3655",
    "CVE-2022-0850"
  ]
}

CVE-2021-3655 (GCVE-0-2021-3655)

Vulnerability from cvelistv5 – Published: 2021-08-05 20:48 – Updated: 2024-08-03 17:01

Summary

A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.

Severity

No CVSS data available.

CWE

CWE-909

Assigner

redhat redhat root

References

3 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1984024	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

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: kernel v5.14-rc1

Show details on NVD website

JSON

To clipboard

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CVE-2021-3659 (GCVE-0-2021-3659)

Vulnerability from cvelistv5 – Published: 2022-08-22 14:49 – Updated: 2024-08-03 17:01

Summary

Severity

No CVSS data available.

CWE

CWE-252 - - Unchecked Return Value, CWE-476 - NULL Pointer Dereference

Assigner

redhat redhat root

References

3 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1975949	x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2021-3659	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Kernel	Affected: Fixed in Kernel 5.12

Show details on NVD website

JSON

To clipboard

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CVE-2021-37576 (GCVE-0-2021-37576)

Vulnerability from cvelistv5 – Published: 2021-07-26 21:35 – Updated: 2024-08-04 01:23

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://lore.kernel.org/linuxppc-dev/87im0x1lqi.f…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/07/27/2	mailing-listx_refsource_MLIST
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-2021091…	x_refsource_CONFIRM
https://www.debian.org/security/2021/dsa-4978	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

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CVE-2022-0850 (GCVE-0-2022-0850)

Vulnerability from cvelistv5 – Published: 2022-08-29 14:03 – Updated: 2024-08-02 23:40

Summary

A vulnerability was found in linux kernel, where an information leak occurs via ext4_extent_header to userspace.

Severity

No CVSS data available.

CWE

CWE-200 - - Exposure of Sensitive Information to an Unauthorized Actor.

Assigner

redhat redhat root

References

4 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2060606	x_refsource_MISC
https://syzkaller.appspot.com/bug?id=78e9ad0e6952…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2022-0850	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: Fixed in kernel v5.14 rc1

Show details on NVD website

JSON

To clipboard

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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.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

oesa-2021-1310

Vulnerability from osv_openeuler

CVE-2021-3655 (GCVE-0-2021-3655)

CVE-2021-3659 (GCVE-0-2021-3659)

CVE-2021-37576 (GCVE-0-2021-37576)

CVE-2022-0850 (GCVE-0-2022-0850)

Tags

Sightings

Nomenclature

Related by attack behaviour