Vulnerability-Lookup

OESA-2022-2117 (CVE-2022-42895)

Vulnerability from osv_openeuler – Published: 2022-11-25 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

There is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url(CVE-2022-42895)

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url(CVE-2022-42896)

Severity

7.6 (High)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2022-42895	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2022-42896	ADVISORY

JSON

To clipboard

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  "affected": [
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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\nThere is an infoleak vulnerability in the Linux kernel\u0026apos;s net/bluetooth/l2cap_core.c\u0026apos;s l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url(CVE-2022-42895)\r\n\r\nThere are use-after-free vulnerabilities in the Linux kernel\u0026apos;s net/bluetooth/l2cap_core.c\u0026apos;s l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url(CVE-2022-42896)",
  "id": "OESA-2022-2117",
  "modified": "2026-08-06T11:05:26Z",
  "published": "2022-11-25T11:05:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2117"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42895"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42896"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2022-42895",
    "CVE-2022-42896"
  ]
}

CVE-2022-42895 (GCVE-0-2022-42895)

Vulnerability from cvelistv5 – Published: 2022-11-23 14:11 – Updated: 2025-04-21 13:46

Title

Info Leak in l2cap_core in the Linux Kernel

Summary

Severity

5.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-21 13:36 UTC

CWE

CWE-824 - Access of Uninitialized Pointer

Assigner

Google Google root

References

2 references

URL	Tags
https://github.com/torvalds/linux/commit/b1a2cd50…
https://kernel.dance/#b1a2cd50c0357f243b7435a732b…

Impacted products

1 product

Vendor	Product	Version
Linux	Linux Kernel	Affected: 3.0.0 , ≤ b1a2cd50c0357f243b7435a732b4e62ba3157a2e (custom)

Date Public

2022-11-02 23:00

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2022-42895",
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CVE-2022-42896 (GCVE-0-2022-42896)

Vulnerability from cvelistv5 – Published: 2022-11-23 14:11 – Updated: 2025-04-21 13:45

Title

Info Leak in l2cap_core in the Linux Kernel

Summary

Severity

8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-21 13:37 UTC

CWE

CWE-416 - Use After Free

Assigner

Google Google root

References

2 references

URL	Tags
https://github.com/torvalds/linux/commit/711f8c3f…
https://kernel.dance/#711f8c3fb3db61897080468586b…

Impacted products

1 product

Vendor	Product	Version
Linux	Linux Kernel	Affected: 3.0.0 , ≤ 711f8c3fb3db61897080468586b970c87c61d9e4 (custom)

Date Public

2022-11-02 23:00

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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-2022-2117 (CVE-2022-42895)

CVE-2022-42895 (GCVE-0-2022-42895)

CVE-2022-42896 (GCVE-0-2022-42896)

Tags

Sightings

Nomenclature

Related by attack behaviour