Vulnerability-Lookup

OESA-2023-1842 (CVE-2022-45884)

Vulnerability from osv_openeuler – Published: 2023-11-17 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvb_register_device dynamically allocating fops.(CVE-2022-45884)

Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2023-35823. Reason: This candidate is a reservation duplicate of CVE-2023-35823. Notes: All CVE users should reference CVE-2023-35823 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.(CVE-2023-3327)

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.(CVE-2023-39198)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.

If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.

We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

(CVE-2023-4623)

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://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2022-45884	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-3327	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-39198	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-4623	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python2-perf-4.19.90-2311.3.0.0226.oe1.aarch64.rpm",
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          "kernel-tools-debuginfo-4.19.90-2311.3.0.0226.oe1.aarch64.rpm",
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        ]
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      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "kernel",
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      },
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    }
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  "database_specific": {
    "severity": "High"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nAn issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvb_register_device dynamically allocating fops.(CVE-2022-45884)\r\n\r\nRejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2023-35823. Reason: This candidate is a reservation duplicate of CVE-2023-35823. Notes: All CVE users should reference CVE-2023-35823 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.(CVE-2023-3327)\r\n\r\nA race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.(CVE-2023-39198)\r\n\r\nA use-after-free vulnerability in the Linux kernel\u0026apos;s net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.\r\n\r\nIf a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.\r\n\r\nWe recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.\r\n\r\n(CVE-2023-4623)",
  "id": "OESA-2023-1842",
  "modified": "2026-08-06T11:06:17Z",
  "published": "2023-11-17T11:06:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1842"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45884"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3327"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39198"
    },
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4623"
    }
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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-2022-45884",
    "CVE-2023-3327",
    "CVE-2023-39198",
    "CVE-2023-4623"
  ]
}

CVE-2022-45884 (GCVE-0-2022-45884)

Vulnerability from cvelistv5 – Published: 2022-11-25 00:00 – Updated: 2024-08-03 14:24

Summary

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvb_register_device dynamically allocating fops.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://lore.kernel.org/linux-media/2022111513182…
https://lore.kernel.org/linux-media/2022111513182…
https://security.netapp.com/advisory/ntap-2023011…
https://git.kernel.org/cgit/linux/kernel/git/torv…

Show details on NVD website

JSON

To clipboard

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CVE-2023-3327 (GCVE-0-2023-3327)

Vulnerability from cvelistv5 – Published: – Updated: 2023-06-27 00:00

DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2023-35823. Reason: This candidate is a reservation duplicate of CVE-2023-35823. Notes: All CVE users should reference CVE-2023-35823 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.

Show details on NVD website

JSON

To clipboard

{
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        "dateUpdated": "2023-06-27T00:00:00.000Z",
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CVE-2023-39198 (GCVE-0-2023-39198)

Vulnerability from cvelistv5 – Published: 2023-11-09 19:15 – Updated: 2026-03-24 11:28

Title

Kernel: qxl: race condition leading to use-after-free in qxl_mode_dumb_create()

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-01 03:55 UTC

CWE

CWE-416 - Use After Free

Assigner

redhat redhat root

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2024:2394	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2950	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3138	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-39198	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2218332	issue-trackingx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.rt7.342.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv cpe:/a:redhat:enterprise_linux:8::realtime
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8::baseos cpe:/a:redhat:enterprise_linux:8::crb
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-427.13.1.el9_4 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::realtime cpe:/a:redhat:enterprise_linux:9::nfv cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2023-08-17 00:00

Show details on NVD website

JSON

To clipboard

{
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CVE-2023-4623 (GCVE-0-2023-4623)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:56 – Updated: 2025-02-27 21:00

Title

Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

Summary

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-26 21:52 UTC

CWE

CWE-416 - Use After Free

Assigner

Google Google root

References

5 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…	patch
https://kernel.dance/b3d26c5702c7d6c45456326e56d2…
https://lists.debian.org/debian-lts-announce/2023…
http://packetstormsecurity.com/files/175963/Kerne…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
Linux	Kernel	Affected: 2.6.12 , < 6.6 (custom)

Date Public

2023-08-26 01:57

Credits

Budimir Markovic

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.

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CVE-2023-3327 (GCVE-0-2023-3327)

CVE-2023-39198 (GCVE-0-2023-39198)

CVE-2023-4623 (GCVE-0-2023-4623)

Tags

Sightings

Nomenclature

Related by attack behaviour