CVE-2024-26980 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf If ->ProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size validation could be skipped. if request size is smaller than sizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in smb2_allocate_rsp_buf(). This patch allocate response buffer after decrypting transform request. smb3_decrypt_req() will validate transform request size and avoid slab-out-of-bound in smb2_allocate_rsp_buf().

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/0977f89722eceba165700ea384f075143f012085
https://git.kernel.org/stable/c/3160d9734453a40db248487f8204830879c207f1
https://git.kernel.org/stable/c/b80ba648714e6d790d69610cf14656be222d0248
https://git.kernel.org/stable/c/c119f4ede3fa90a9463f50831761c28f989bfb20
https://git.kernel.org/stable/c/da21401372607c49972ea87a6edaafb36a17c325
https://lore.kernel.org/linux-cve-announce/2024050141-CVE-2024-26980-4b16@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-26980
https://www.cve.org/CVERecord?id=CVE-2024-26980

History

Tue, 24 Sep 2024 19:00:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-125

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-01T05:26:56.744Z

Updated: 2024-12-19T08:51:39.091Z

Reserved: 2024-02-19T14:20:24.204Z

Link: CVE-2024-26980

Vulnrichment

Updated: 2024-08-02T00:21:05.907Z

NVD

Status : Awaiting Analysis

Published: 2024-05-01T06:15:15.423

Modified: 2024-11-21T09:03:32.600

Link: CVE-2024-26980

Redhat

Severity : Moderate

Publid Date: 2024-05-01T00:00:00Z

Links: CVE-2024-26980 - Bugzilla

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{"bugzilla": {"description": "kernel: ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf", "id": "2278341", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278341"}, "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-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf\nIf ->ProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size\nvalidation could be skipped. if request size is smaller than\nsizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in\nsmb2_allocate_rsp_buf(). This patch allocate response buffer after\ndecrypting transform request. smb3_decrypt_req() will validate transform\nrequest size and avoid slab-out-of-bound in smb2_allocate_rsp_buf().", "A flaw was found in the Linux kernel's ksmbd module. Improper size validation can trigger an out-of-bounds read, resulting in a denial of service."], "name": "CVE-2024-26980", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "2024-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26980\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26980\nhttps://lore.kernel.org/linux-cve-announce/2024050141-CVE-2024-26980-4b16@gregkh/T"], "statement": "The ksmbd module is not built in the kernel shipped in Red Hat Enterprise Linux, so it is not affected by this vulnerability.", "threat_severity": "Moderate", "upstream_fix": "kernel 6.1.88, kernel 6.6.29, kernel 6.8.8, kernel 6.9-rc6"}