csaf_redhat - rhsa-2024

rhsa-2024_0261

Vulnerability from csaf_redhat

Published

2024-01-16 15:56

Modified

2024-09-13 19:05

Summary

Red Hat Security Advisory: kernel security update

Notes

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.6 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611) * kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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        "text": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)\n\n* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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          "text": "An out-of-bounds memory write flaw was found in qfq_change_agg in net/sched/sch_qfq.c in the Traffic Control (QoS) subsystem in the Linux kernel. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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      "title": "kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead"
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    {
      "cve": "CVE-2023-4128",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
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      "discovery_date": "2023-07-24T00:00:00+00:00",
      "flags": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2261965"
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      "notes": [
        {
          "category": "description",
          "text": "This record is a duplicate of CVE-2023-4206, CVE-2023-4207, and CVE-2023-4208. Do not use this CVE record: CVE-2023-4128.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "All CVE users should reference CVE-2023-4206, CVE-2023-4207, CVE-2023-4208 instead of this record. All references and descriptions in this record have been removed to prevent accidental usage.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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      "title": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route"
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      "cve": "CVE-2023-4206",
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
          "title": "Vulnerability summary"
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        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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            "integrityImpact": "HIGH",
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          "category": "impact",
          "details": "Important"
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      "title": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route"
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    {
      "cve": "CVE-2023-4207",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
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      "discovery_date": "2023-07-24T00:00:00+00:00",
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          "text": "2225511"
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        {
          "category": "description",
          "text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81",
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          "url": "https://lore.kernel.org/netdev/193d6cdf-d6c9-f9be-c36a-b2a7551d5fb6@mojatatu.com/"
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          "category": "vendor_fix",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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      "title": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route"
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    {
      "cve": "CVE-2023-4208",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
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      "discovery_date": "2023-07-24T00:00:00+00:00",
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          "text": "2225511"
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      "notes": [
        {
          "category": "description",
          "text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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      "release_date": "2023-07-29T00:00:00+00:00",
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          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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      "title": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route"
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    {
      "cve": "CVE-2023-31436",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2023-05-02T00:00:00+00:00",
      "ids": [
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          "text": "2192671"
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      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds memory access flaw was found in the Linux kernel\u2019s traffic control (QoS) subsystem in how a user triggers the qfq_change_class function with an incorrect MTU value of the network device used as lmax. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: out-of-bounds write in qfq_change_class function",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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      "release_date": "2023-04-13T00:00:00+00:00",
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}

cve-2023-4207

Vulnerability from cvelistv5

Published

2023-09-06 13:53

Modified

2024-08-02 07:17

Severity

7.8 (High) - cvssV3_1 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

Use-after-free in Linux kernel's net/sched: cls_fw component

References

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec	patch
https://kernel.dance/76e42ae831991c828cffa8c37736ebfb831ad5ec
https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Impacted products

Vendor	Product
Linux	Kernel

Show details on NVD website

JSON

To clipboard

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          "user": "00000000-0000-4000-9000-000000000000",
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cve-2023-3611

Vulnerability from cvelistv5

Published

2023-07-21 20:49

Modified

2024-08-02 07:01

Severity

7.8 (High) - cvssV3_1 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

Out-of-bounds write in Linux kernel's net/sched: sch_qfq component

References

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64	patch
https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64
https://www.debian.org/security/2023/dsa-5480
https://security.netapp.com/advisory/ntap-20230908-0002/
https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Impacted products

Vendor	Product
Linux	Kernel

Show details on NVD website

JSON

To clipboard

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cve-2023-4206

Vulnerability from cvelistv5

Published

2023-09-06 13:53

Modified

2024-08-02 07:17

Severity

7.8 (High) - cvssV3_1 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

Use-after-free in Linux kernel's net/sched: cls_route component

References

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8	patch
https://kernel.dance/b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8
https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Impacted products

Vendor	Product
Linux	Kernel

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
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cve-2023-4208

Vulnerability from cvelistv5

Published

2023-09-06 13:53

Modified

2024-08-02 07:17

Severity

7.8 (High) - cvssV3_1 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

Use-after-free in Linux kernel's net/sched: cls_u32 component

References

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81	patch
https://kernel.dance/3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81
https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Impacted products

Vendor	Product
Linux	Kernel

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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          "user": "00000000-0000-4000-9000-000000000000",
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            }
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        {
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        }
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cve-2023-4128

Vulnerability from cvelistv5

** REJECT ** DO NOT USE THIS CVE RECORD. ConsultIDs: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. Reason: This record is a duplicate of CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. Notes: All CVE users should reference CVE-2023-4206, CVE-2023-4207, CVE-2023-4208 instead of this record. All references and descriptions in this record have been removed to prevent accidental usage.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "providerMetadata": {
        "dateUpdated": "2023-11-14T11:27:04.495Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "rejectedReasons": [
        {
          "lang": "en",
          "value": "** REJECT ** DO NOT USE THIS CVE RECORD. ConsultIDs: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208.  Reason: This record is a duplicate of CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. Notes: All CVE users should reference CVE-2023-4206, CVE-2023-4207, CVE-2023-4208 instead of this record. All references and descriptions in this record have been removed to prevent accidental usage."
        }
      ]
    }
  },
  "cveMetadata": {
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    "assignerShortName": "redhat",
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    "datePublished": "2023-08-10T16:50:25.184Z",
    "dateRejected": "2023-11-14T11:27:04.495Z",
    "dateReserved": "2023-08-03T06:02:29.894Z",
    "dateUpdated": "2023-11-14T11:27:04.495Z",
    "state": "REJECTED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.0"
}

cve-2023-31436

Vulnerability from cvelistv5

Published

2023-04-28 00:00

Modified

2024-08-02 14:53

Severity

Summary

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.

References

URL	Tags
https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d
https://www.spinics.net/lists/stable-commits/msg294885.html
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13
https://www.debian.org/security/2023/dsa-5402	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html	mailing-list
https://security.netapp.com/advisory/ntap-20230609-0001/
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html

Impacted products

Vendor	Product
n/a	n/a

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T14:53:30.606Z",
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            "url": "https://www.spinics.net/lists/stable-commits/msg294885.html"
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          {
            "tags": [
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            "url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13"
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            "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html"
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          {
            "tags": [
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            "url": "https://security.netapp.com/advisory/ntap-20230609-0001/"
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          {
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            "url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"
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        },
        {
          "name": "[debian-lts-announce] 20230605 [SECURITY] [DLA 3446-1] linux-5.10 security update",
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    "datePublished": "2023-04-28T00:00:00",
    "dateReserved": "2023-04-28T00:00:00",
    "dateUpdated": "2024-08-02T14:53:30.606Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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