CVE-2024-26634 - Vulnerability Details - OpenCVE

ReportizFlow

In the Linux kernel, the following vulnerability has been resolved: net: fix removing a namespace with conflicting altnames Mark reports a BUG() when a net namespace is removed. kernel BUG at net/core/dev.c:11520! Physical interfaces moved outside of init_net get "refunded" to init_net when that namespace disappears. The main interface name may get overwritten in the process if it would have conflicted. We need to also discard all conflicting altnames. Recent fixes addressed ensuring that altnames get moved with the main interface, which surfaced this problem.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/8072699aa9e67d1727692cfb3c347263bb627fb9
https://git.kernel.org/stable/c/a2232f29bf52c24f827865b3c90829c44b6c695b
https://git.kernel.org/stable/c/d09486a04f5da0a812c26217213b89a3b1acf836
https://git.kernel.org/stable/c/e855dded4b70d1975ee7b9fed0c700391e3c8ea6
https://lore.kernel.org/linux-cve-announce/[email protected]/T
https://nvd.nist.gov/vuln/detail/CVE-2024-26634
https://www.cve.org/CVERecord?id=CVE-2024-26634

History

Tue, 05 Nov 2024 10:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Sep 2024 18:30:00 +0000

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-03-18T10:14:46.639Z

Updated: 2024-12-19T08:43:55.536Z

Reserved: 2024-02-19T14:20:24.136Z

Link: CVE-2024-26634

Vulnrichment

Updated: 2024-08-02T00:07:19.681Z

NVD

Status : Awaiting Analysis

Published: 2024-03-18T11:15:10.053

Modified: 2024-11-21T09:02:44.020

Link: CVE-2024-26634

Redhat

Severity : Moderate

Publid Date: 2024-03-18T00:00:00Z

Links: CVE-2024-26634 - Bugzilla

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{"bugzilla": {"description": "kernel: net: fix removing a namespace with conflicting altnames", "id": "2270116", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2270116"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-400", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: fix removing a namespace with conflicting altnames\nMark reports a BUG() when a net namespace is removed.\nkernel BUG at net/core/dev.c:11520!\nPhysical interfaces moved outside of init_net get \"refunded\"\nto init_net when that namespace disappears. The main interface\nname may get overwritten in the process if it would have\nconflicted. We need to also discard all conflicting altnames.\nRecent fixes addressed ensuring that altnames get moved\nwith the main interface, which surfaced this problem.", "A vulnerability was found in network subsystem of Linux Kernel causing a system crash when removing a network namespace with conflicting alternate names. When physical interfaces are moved back to the initial namespace, the main interface name could be overwritten if it conflicts, but conflicting alternate names were not properly discarded, leading to DoS."], "mitigation": {"lang": "en:us", "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}, "name": "CVE-2024-26634", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26634\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26634\nhttps://lore.kernel.org/linux-cve-announce/[email protected]/T"], "statement": "Red Hat Enterprise Linux 8 and 9 are not affected by this vulnerability.", "threat_severity": "Moderate", "upstream_fix": "kernel 6.1.76, kernel 6.6.15, kernel 6.7.3, kernel 6.8"}