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CVE-2024-26954— ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于存在越界问题。

CVSS 8.1 · High EPSS 0.70% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf< d70c2e0904ab3715c5673fd45788a464a246d1db affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 9e4937cbc150f9d5a9b5576e1922ef0b5ed2eb72 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 3b8da67191e938a63d2736dabb4ac5d337e5de57 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 4f97e6a9d62cb1fce82fbf4baff44b83221bc178 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< a80a486d72e20bd12c335bcd38b6e6f19356b0aa affected
5.15 affected
< 5.15 unaffected
6.1.119≤ 6.1.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-26954

Vulnerability Information
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Vulnerability Title
ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16() If ->NameOffset of smb2_create_req is smaller than Buffer offset of smb2_create_req, slab-out-of-bounds read can happen from smb2_open. This patch set the minimum value of the name offset to the buffer offset to validate name length of smb2_create_req().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于存在越界问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf ~ d70c2e0904ab3715c5673fd45788a464a246d1db -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-26954

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2024-26954

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Patches & Fixes for CVE-2024-26954 (1)

Other References for CVE-2024-26954 (3)

Same Patch Batch · Linux · 2024-05-01 · 159 CVEs total

CVE-2024-27388 9.8 CRITICAL SUNRPC: fix some memleaks in gssx_dec_option_array
CVE-2024-26953 9.8 CRITICAL net: esp: fix bad handling of pages from page_pool
CVE-2024-26931 8.8 HIGH scsi: qla2xxx: Fix command flush on cable pull
CVE-2024-27053 8.8 HIGH wifi: wilc1000: fix RCU usage in connect path
CVE-2024-26990 8.8 HIGH KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
CVE-2024-26952 8.3 HIGH ksmbd: fix potencial out-of-bounds when buffer offset is invalid
CVE-2024-27018 8.2 HIGH netfilter: br_netfilter: skip conntrack input hook for promisc packets
CVE-2024-26936 8.2 HIGH ksmbd: validate request buffer size in smb2_allocate_rsp_buf()
CVE-2024-26980 8.2 HIGH ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf
CVE-2024-26994 7.8 HIGH speakup: Avoid crash on very long word
CVE-2024-26966 7.8 HIGH clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
CVE-2024-26974 7.8 HIGH crypto: qat - resolve race condition during AER recovery
CVE-2024-26976 7.8 HIGH KVM: Always flush async #PF workqueue when vCPU is being destroyed
CVE-2024-27062 7.8 HIGH nouveau: lock the client object tree.
CVE-2024-27061 7.8 HIGH crypto: sun8i-ce - Fix use after free in unprepare
CVE-2024-26983 7.8 HIGH bootconfig: use memblock_free_late to free xbc memory to buddy
CVE-2024-27058 7.8 HIGH tmpfs: fix race on handling dquot rbtree
CVE-2024-27056 7.8 HIGH wifi: iwlwifi: mvm: ensure offloading TID queue exists
CVE-2024-27017 7.8 HIGH netfilter: nft_set_pipapo: walk over current view on netlink dump
CVE-2024-27019 7.8 HIGH netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()

Showing top 20 of 159 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26954

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