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CVE-2024-56539— wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()

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wifi:cw1200模块中潜在的空指针取消引用。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< a09760c513ae0f98c7082a1deace7fb6284ee866 affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< 1de0ca1d7320a645ba2ee5954f64be08935b002a affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< 5fa329c44e1e635da2541eab28b6cdb8464fc8d1 affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< 581261b2d6fdb4237b24fa13f5a5f87bf2861f2c affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< b466746cfb6be43f9a1457bbee52ade397fb23ea affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< c4698ef8c42e02782604bf4f8a489dbf6b0c1365 affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< e2de22e4b6213371d9e76f74a10ce817572a8d74 affected
5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e< d7774910c5583e61c5fe2571280366624ef48036 affected
… +12 more rows
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I. Basic Information for CVE-2024-56539

Vulnerability Information
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Vulnerability Title
wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan() Replace one-element array with a flexible-array member in `struct mwifiex_ie_types_wildcard_ssid_params` to fix the following warning on a MT8173 Chromebook (mt8173-elm-hana): [ 356.775250] ------------[ cut here ]------------ [ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1) [ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex] The "(size 6)" above is exactly the length of the SSID of the network this device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len); There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this struct, but it already didn't account for the size of the one-element array, so it doesn't need to be changed.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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wifi:cw1200模块中潜在的空指针取消引用。
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 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e ~ a09760c513ae0f98c7082a1deace7fb6284ee866 -
Linux Linux 3.0 -

II. Public POCs for CVE-2024-56539

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III. Intelligence Information for CVE-2024-56539

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Patches & Fixes for CVE-2024-56539 (9)

Same Patch Batch · Linux · 2024-12-27 · 221 CVEs total

CVE-2024-56640 9.8 CRITICAL net/smc: fix LGR and link use-after-free issue
CVE-2024-53209 9.8 CRITICAL bnxt_en: Fix receive ring space parameters when XDP is active
CVE-2024-53206 9.8 CRITICAL tcp: Fix use-after-free of nreq in reqsk_timer_handler().
CVE-2024-53169 9.8 CRITICAL nvme-fabrics: fix kernel crash while shutting down controller
CVE-2024-53186 9.8 CRITICAL ksmbd: fix use-after-free in SMB request handling
CVE-2024-56645 9.8 CRITICAL can: j1939: j1939_session_new(): fix skb reference counting
CVE-2024-53179 9.8 CRITICAL smb: client: fix use-after-free of signing key
CVE-2024-56656 9.8 CRITICAL bnxt_en: Fix aggregation ID mask to prevent oops on 5760X chips
CVE-2024-53177 9.8 CRITICAL smb: prevent use-after-free due to open_cached_dir error paths
CVE-2024-53176 9.8 CRITICAL smb: During unmount, ensure all cached dir instances drop their dentry
CVE-2024-56653 8.8 HIGH Bluetooth: btmtk: avoid UAF in btmtk_process_coredump
CVE-2024-53237 8.8 HIGH Bluetooth: fix use-after-free in device_for_each_child()
CVE-2024-53224 8.8 HIGH RDMA/mlx5: Move events notifier registration to be after device registration
CVE-2024-56669 8.8 HIGH iommu/vt-d: Remove cache tags before disabling ATS
CVE-2024-56626 8.8 HIGH ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write
CVE-2024-56591 8.8 HIGH Bluetooth: hci_conn: Use disable_delayed_work_sync
CVE-2024-56651 8.8 HIGH can: hi311x: hi3110_can_ist(): fix potential use-after-free
CVE-2024-56627 8.1 HIGH ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read
CVE-2024-56652 7.8 HIGH drm/xe/reg_sr: Remove register pool
CVE-2024-56606 7.8 HIGH af_packet: avoid erroring out after sock_init_data() in packet_create()

Showing top 20 of 221 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56539

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