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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-2023-4207 (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
URL | Tags | |
---|---|---|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-02T07:17:12.218Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "patch", "x_transferred" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec" }, { "tags": [ "x_transferred" ], "url": "https://kernel.dance/76e42ae831991c828cffa8c37736ebfb831ad5ec" }, { "tags": [ "x_transferred" ], "url": "https://www.debian.org/security/2023/dsa-5492" }, { "tags": [ "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "packageName": "kernel", "product": "Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [ { "lessThan": "6.5", "status": "affected", "version": "3.18", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "valis" }, { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Bing-Jhong Billy Jheng" } ], "datePublic": "2023-08-01T03:10:36.000Z", "descriptions": [ { "lang": "en", "value": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: cls_fw component can be exploited to achieve local privilege escalation.\n\nWhen 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.\n\nWe recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec." } ], "impacts": [ { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "CAPEC-233 Privilege Escalation" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-01-11T19:07:21.704Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "tags": [ "patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec" }, { "url": "https://kernel.dance/76e42ae831991c828cffa8c37736ebfb831ad5ec" }, { "url": "https://www.debian.org/security/2023/dsa-5492" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "source": { "discovery": "EXTERNAL" }, "title": "Use-after-free in Linux kernel\u0027s net/sched: cls_fw component", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } } }, "cveMetadata": { "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2023-4207", "datePublished": "2023-09-06T13:53:22.834Z", "dateReserved": "2023-08-07T13:02:25.476Z", "dateUpdated": "2025-02-13T17:09:17.204Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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
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"affected": [ { "cpes": [ "cpe:2.3:o:linux:kernel:*:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "kernel", "vendor": "linux", "versions": [ { "lessThan": "6.5", "status": "affected", "version": "3.8", "versionType": "custom" } ] } ], "metrics": [ { "other": { "content": { "id": "CVE-2023-3611", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "timestamp": "2024-09-27T13:33:11.602895Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-09-27T13:43:55.993Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "packageName": "kernel", "product": "Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [ { "lessThan": "6.5", "status": "affected", "version": "3.8", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Lion" } ], "datePublic": "2023-07-13T09:11:00.000Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\u003cp\u003eAn out-of-bounds write vulnerability in the Linux kernel\u0027s net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\u003c/p\u003e\u003cp\u003eThe 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.\u003c/p\u003e\u003cp\u003eWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.\u003c/p\u003e" } ], "value": "An out-of-bounds write vulnerability in the Linux kernel\u0027s net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\n\nThe 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.\n\nWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64." } ], "impacts": [ { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "CAPEC-233 Privilege Escalation" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-01-11T19:07:18.060Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "tags": [ "patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64" }, { "url": "https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64" }, { "url": "https://www.debian.org/security/2023/dsa-5480" }, { "url": "https://security.netapp.com/advisory/ntap-20230908-0002/" }, { "url": "https://www.debian.org/security/2023/dsa-5492" }, { "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "source": { "discovery": "EXTERNAL" }, "title": "Out-of-bounds write in Linux kernel\u0027s net/sched: sch_qfq component", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } } }, "cveMetadata": { "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2023-3611", "datePublished": "2023-07-21T20:49:10.812Z", "dateReserved": "2023-07-10T20:52:55.365Z", "dateUpdated": "2025-02-13T16:56:15.625Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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
URL | Tags | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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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.\u003c/p\u003e\u003cp\u003eWe recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.\u003c/p\u003e" } ], "value": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: cls_fw component can be exploited to achieve local privilege escalation.\n\nIf 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.\n\nWe recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f." } ], "impacts": [ { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "CAPEC-233 Privilege Escalation" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-02-02T14:06:25.968Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "tags": [ "patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f" }, { "url": "https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f" }, { "url": "https://www.debian.org/security/2023/dsa-5480" }, { "url": "https://www.debian.org/security/2023/dsa-5492" }, { "url": "http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html" }, { "url": "http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" }, { "url": "https://security.netapp.com/advisory/ntap-20240202-0003/" } ], "source": { "discovery": "EXTERNAL" }, "title": "Use-after-free in Linux kernel\u0027s net/sched: cls_fw component", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } } }, "cveMetadata": { "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2023-3776", "datePublished": "2023-07-21T20:49:53.667Z", "dateReserved": "2023-07-19T15:50:20.757Z", "dateUpdated": "2025-03-05T18:48:04.229Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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{ "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": { "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2023-4128", "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-2023-4206 (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
URL | Tags | |
---|---|---|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-02T07:17:12.232Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "patch", "x_transferred" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8" }, { "tags": [ "x_transferred" ], "url": "https://kernel.dance/b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8" }, { "tags": [ "x_transferred" ], "url": "https://www.debian.org/security/2023/dsa-5492" }, { "tags": [ "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "packageName": "kernel", "product": "Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [ { "lessThan": "6.5", "status": "affected", "version": "3.18", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "valis" }, { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Bing-Jhong Billy Jheng" } ], "datePublic": "2023-08-01T03:10:37.000Z", "descriptions": [ { "lang": "en", "value": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: cls_route component can be exploited to achieve local privilege escalation.\n\nWhen 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.\n\nWe recommend upgrading past commit b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8." } ], "impacts": [ { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "CAPEC-233 Privilege Escalation" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-01-11T19:06:38.250Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "tags": [ "patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8" }, { "url": "https://kernel.dance/b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8" }, { "url": "https://www.debian.org/security/2023/dsa-5492" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "source": { "discovery": "EXTERNAL" }, "title": "Use-after-free in Linux kernel\u0027s net/sched: cls_route component", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } } }, "cveMetadata": { "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2023-4206", "datePublished": "2023-09-06T13:53:05.197Z", "dateReserved": "2023-08-07T13:02:24.450Z", "dateUpdated": "2025-02-13T17:09:16.643Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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.
References
URL | Tags | |
---|---|---|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-02T07:17:12.134Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "patch", "x_transferred" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81" }, { "tags": [ "x_transferred" ], "url": "https://kernel.dance/3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81" }, { "tags": [ "x_transferred" ], "url": "https://www.debian.org/security/2023/dsa-5492" }, { "tags": [ "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "packageName": "kernel", "product": "Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [ { "lessThan": "6.5", "status": "affected", "version": "3.18", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "valis" }, { "lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Muhammad Alifa Ramdhan of STAR Labs" } ], "datePublic": "2023-08-01T03:10:36.000Z", "descriptions": [ { "lang": "en", "value": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: cls_u32 component can be exploited to achieve local privilege escalation.\n\nWhen 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.\n\nWe recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81." } ], "impacts": [ { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "CAPEC-233 Privilege Escalation" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-01-11T19:06:57.469Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "tags": [ "patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81" }, { "url": "https://kernel.dance/3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81" }, { "url": "https://www.debian.org/security/2023/dsa-5492" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "source": { "discovery": "EXTERNAL" }, "title": "Use-after-free in Linux kernel\u0027s net/sched: cls_u32 component", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } } }, "cveMetadata": { "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2023-4208", "datePublished": "2023-09-06T13:53:23.843Z", "dateReserved": "2023-08-07T13:02:26.235Z", "dateUpdated": "2025-02-13T17:09:17.757Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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Sightings
Author | Source | Type | Date |
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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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