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CERTFR-2024-AVI-0056
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux de RedHat. Elles permettent à un attaquant de provoquer un déni de service et une élévation de privilèges.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 7.7 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 7.6 x86_64 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux Server - AUS 7.7 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 7.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2023-4206",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4206"
},
{
"name": "CVE-2023-3611",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3611"
},
{
"name": "CVE-2023-4128",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4128"
},
{
"name": "CVE-2023-4207",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4207"
},
{
"name": "CVE-2023-4208",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4208"
},
{
"name": "CVE-2023-3776",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3776"
}
],
"initial_release_date": "2024-01-19T00:00:00",
"last_revision_date": "2024-01-19T00:00:00",
"links": [],
"reference": "CERTFR-2024-AVI-0056",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2024-01-19T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans \u003cspan\nclass=\"textit\"\u003ele noyau Linux de RedHat\u003c/span\u003e. Elles permettent \u00e0 un\nattaquant de provoquer un d\u00e9ni de service et une \u00e9l\u00e9vation de\nprivil\u00e8ges.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de RedHat",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2024:0262 du 16 janvier 2024",
"url": "https://access.redhat.com/errata/RHSA-2024:0262"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2024:0261 du 16 janvier 2024",
"url": "https://access.redhat.com/errata/RHSA-2024:0261"
}
]
}
CVE-2023-4206 (GCVE-0-2023-4206)
Vulnerability from cvelistv5
Published
2023-09-06 13:53
Modified
2025-02-13 17:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: cls_route component can be exploited to achieve local privilege escalation.
When route4_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.
We recommend upgrading past commit b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8.
References
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CVE-2023-3776 (GCVE-0-2023-3776)
Vulnerability from cvelistv5
Published
2023-07-21 20:49
Modified
2025-03-05 18:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.
If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.
We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.
References
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CVE-2023-3611 (GCVE-0-2023-3611)
Vulnerability from cvelistv5
Published
2023-07-21 20:49
Modified
2025-02-13 16:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.
The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.
We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2023-4128 (GCVE-0-2023-4128)
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{
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CVE-2023-4208 (GCVE-0-2023-4208)
Vulnerability from cvelistv5
Published
2023-09-06 13:53
Modified
2025-02-13 17:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation.
When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.
We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.
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CVE-2023-4207 (GCVE-0-2023-4207)
Vulnerability from cvelistv5
Published
2023-09-06 13:53
Modified
2025-02-13 17:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.
When fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.
We recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec.
References
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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