Vulnerability-Lookup

OESA-2023-1587 (CVE-2023-1206)

Vulnerability from osv_openeuler – Published: 2023-09-02 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):

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.(CVE-2023-1206)

A buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network packets to the backend, causing the backend to crash.(CVE-2023-34319)

An issue was discovered in the Linux kernel before 6.3.10. fs/smb/server/smb2misc.c in ksmbd does not validate the relationship between the command payload size and the RFC1002 length specification, leading to an out-of-bounds read.(CVE-2023-38432)

(CVE-2023-3867)

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.(CVE-2023-40283)

A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.(CVE-2023-4194)

Severity

9.1 (Critical)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-1206	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-34319	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-38432	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-3867	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-40283	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-4194	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "perf-debuginfo-5.10.0-153.25.0.101.oe2203sp2.aarch64.rpm",
          "kernel-devel-5.10.0-153.25.0.101.oe2203sp2.aarch64.rpm",
          "python3-perf-debuginfo-5.10.0-153.25.0.101.oe2203sp2.aarch64.rpm",
          "kernel-debuginfo-5.10.0-153.25.0.101.oe2203sp2.aarch64.rpm",
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            }
          ],
          "type": "ECOSYSTEM"
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    }
  ],
  "database_specific": {
    "severity": "Critical"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\n\r\n\r\nSecurity Fix(es):\r\n\r\nA hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel\u2019s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.(CVE-2023-1206)\r\n\r\nA buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network packets to the backend, causing the backend to crash.(CVE-2023-34319)\r\n\r\nAn issue was discovered in the Linux kernel before 6.3.10. fs/smb/server/smb2misc.c in ksmbd does not validate the relationship between the command payload size and the RFC1002 length specification, leading to an out-of-bounds read.(CVE-2023-38432)\r\n\r\n(CVE-2023-3867)\r\n\r\nAn issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.(CVE-2023-40283)\r\n\r\nA flaw was found in the Linux kernel\u0026apos;s TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 (\u0026quot;tun: tun_chr_open(): correctly initialize socket uid\u0026quot;), - 66b2c338adce (\u0026quot;tap: tap_open(): correctly initialize socket uid\u0026quot;), pass \u0026quot;inode-\u0026gt;i_uid\u0026quot; to sock_init_data_uid() as the last parameter and that turns out to not be accurate.(CVE-2023-4194)",
  "id": "OESA-2023-1587",
  "modified": "2026-08-06T11:06:02Z",
  "published": "2023-09-02T11:06:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1587"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1206"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34319"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38432"
    },
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3867"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40283"
    },
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    }
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      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
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    "CVE-2023-34319",
    "CVE-2023-38432",
    "CVE-2023-3867",
    "CVE-2023-40283",
    "CVE-2023-4194"
  ]
}

CVE-2023-1206 (GCVE-0-2023-1206)

Vulnerability from cvelistv5 – Published: 2023-06-30 00:00 – Updated: 2024-10-15 17:11

Summary

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-15 17:09 UTC

CWE

CWE-400

Assigner

redhat redhat root

References

6 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2175903
https://www.debian.org/security/2023/dsa-5480	vendor-advisory
https://www.debian.org/security/2023/dsa-5492	vendor-advisory
https://security.netapp.com/advisory/ntap-2023092…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2024…	mailing-list

Impacted products

1 product

Vendor	Product	Version
n/a	Kernel	Affected: kernel 6.5-rc1

Show details on NVD website

JSON

To clipboard

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CVE-2023-34319 (GCVE-0-2023-34319)

Vulnerability from cvelistv5 – Published: 2023-09-22 13:34 – Updated: 2025-11-04 19:16

Title

Linux: buffer overrun in netback due to unusual packet

Summary

The fix for XSA-423 added logic to Linux'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. Unfortunately the logic introduced there didn't account for the extreme case of the entire packet being split into as many pieces as permitted by the protocol, yet still being smaller than the area that's specially dealt with to keep all (possible) headers together. Such an unusual packet would therefore trigger a buffer overrun in the driver.

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 2025-06-18 14:25 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

XEN mitre root

References

6 references

URL	Tags
https://xenbits.xenproject.org/xsa/advisory-432.html
http://packetstormsecurity.com/files/175963/Kerne…
https://lists.debian.org/debian-lts-announce/2024…
https://security.netapp.com/advisory/ntap-2024020…
https://lists.debian.org/debian-lts-announce/2023…
http://xenbits.xen.org/xsa/advisory-432.html

Impacted products

1 product

Vendor	Product	Version
Linux	Linux	Unknown: consult Xen advisory XSA-432

Date Public

2023-09-19 12:00

Credits

This issue was discovered by Ross Lagerwall of Citrix.

Show details on NVD website

JSON

To clipboard

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        }
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    "cveId": "CVE-2023-34319",
    "datePublished": "2023-09-22T13:34:44.424Z",
    "dateReserved": "2023-06-01T10:44:17.064Z",
    "dateUpdated": "2025-11-04T19:16:32.279Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2023-38432 (GCVE-0-2023-38432)

Vulnerability from cvelistv5 – Published: 2023-07-17 00:00 – Updated: 2024-08-02 17:39

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://cdn.kernel.org/pub/linux/kernel/v6.x/Chan…
https://security.netapp.com/advisory/ntap-2023083…

Show details on NVD website

JSON

To clipboard

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CVE-2023-3867 (GCVE-0-2023-3867)

Vulnerability from cvelistv5 – Published: 2025-08-16 13:29 – Updated: 2026-08-15 12:23

Title

ksmbd: fix out of bounds read in smb2_sess_setup

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().

Severity

9.1 (Critical)


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

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/676392184785ace61…
https://git.kernel.org/stable/c/ef572ffa8eb44111e…
https://git.kernel.org/stable/c/2ba03cecb12ac7ac9…
https://git.kernel.org/stable/c/98422bdd4cb3ca4d0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 676392184785ace61e939831e7ca44a03d438c3b (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < ef572ffa8eb44111eed2925fbb2adca78bdcbf61 (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 2ba03cecb12ac7ac9e0170e251543c56832d9959 (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.145 , ≤ 5.15.* (semver) Unaffected: 6.1.40 , ≤ 6.1.* (semver) Unaffected: 6.4.5 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "cna": {
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            "baseSeverity": "CRITICAL",
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CVE-2023-40283 (GCVE-0-2023-40283)

Vulnerability from cvelistv5 – Published: 2023-08-14 00:00 – Updated: 2026-09-18 15:06

Summary

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

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 2024-05-10 04:00 UTC

CWE

n/a
CWE-416 - Use After Free

Assigner

mitre mitre root

References

10 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://github.com/torvalds/linux/commit/1728137b…
https://cdn.kernel.org/pub/linux/kernel/v6.x/Chan…
https://www.debian.org/security/2023/dsa-5480	vendor-advisory
https://www.debian.org/security/2023/dsa-5492	vendor-advisory
http://packetstormsecurity.com/files/175072/Kerne…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://security.netapp.com/advisory/ntap-2023102…
http://packetstormsecurity.com/files/175963/Kerne…
https://lists.debian.org/debian-lts-announce/2024…	mailing-list

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:31:53.261Z",
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              "confidentialityImpact": "HIGH",
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CVE-2023-4194 (GCVE-0-2023-4194)

Vulnerability from cvelistv5 – Published: 2023-08-07 13:19 – Updated: 2026-03-24 11:22

Title

Kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid

Summary

Severity

5.5 (Medium)


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

CWE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

redhat redhat root

References

12 references

URL	Tags
https://access.redhat.com/errata/RHSA-2023:6583	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-4194	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2229498	issue-trackingx_refsource_REDHAT
https://lore.kernel.org/all/20230731164237.48365-…
https://lore.kernel.org/all/20230731164237.48365-…
https://lore.kernel.org/all/20230731164237.48365-…
https://lists.debian.org/debian-lts-announce/2023…	x_transferred
https://lists.fedoraproject.org/archives/list/pac…	x_transferred
https://lists.fedoraproject.org/archives/list/pac…	x_transferred
https://security.netapp.com/advisory/ntap-2023102…	x_transferred
https://www.debian.org/security/2023/dsa-5480	x_transferred
https://www.debian.org/security/2023/dsa-5492	x_transferred

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-362.8.1.el9_3 , < * (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 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Virtualization 4	cpe:/o:redhat:rhev_hypervisor:4

Date Public

2023-08-03 00:00

Credits

This issue was discovered by Laszlo Ersek (Red Hat).

Show details on NVD website

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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.

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Tags

Sightings

Nomenclature

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