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CVE-2023-53589— wifi: iwlwifi: mvm: don't trust firmware n_channels

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，该漏洞源于未验证固件n_channels长度，可能导致内存损坏或系统崩溃。

CVSS 8.8 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux dcaf9f5ecb6f395152609bdc40660d9b593dca63< e519a404a5bbba37693cb10fa61794a5fce4fd9b affected
dcaf9f5ecb6f395152609bdc40660d9b593dca63< d0d39bed9e95f27a246be91c5929254ac043ed30 affected
dcaf9f5ecb6f395152609bdc40660d9b593dca63< 05ad5a4d421ce65652fcb24d46b7e273130240d6 affected
dcaf9f5ecb6f395152609bdc40660d9b593dca63< 557ba100d8cf3661ff8d71c0b4a2cba8db555ec2 affected
dcaf9f5ecb6f395152609bdc40660d9b593dca63< c176f03350954b795322de0bfe1d7b514db41f45 affected
dcaf9f5ecb6f395152609bdc40660d9b593dca63< 682b6dc29d98e857e6ca4bbc077c7dc2899b7473 affected
4.1 affected
< 4.1 unaffected
… +6 more rows
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I. Basic Information for CVE-2023-53589

Vulnerability Information
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Vulnerability Title
wifi: iwlwifi: mvm: don't trust firmware n_channels
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't trust firmware n_channels If the firmware sends us a corrupted MCC response with n_channels much larger than the command response can be, we might copy far too much (uninitialized) memory and even crash if the n_channels is large enough to make it run out of the one page allocated for the FW response. Fix that by checking the lengths. Doing a < comparison would be sufficient, but the firmware should be doing it correctly, so check more strictly.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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，该漏洞源于未验证固件n_channels长度，可能导致内存损坏或系统崩溃。
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 dcaf9f5ecb6f395152609bdc40660d9b593dca63 ~ e519a404a5bbba37693cb10fa61794a5fce4fd9b -
Linux Linux 4.1 -

II. Public POCs for CVE-2023-53589

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III. Intelligence Information for CVE-2023-53589

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Patches & Fixes for CVE-2023-53589 (6)

Same Patch Batch · Linux · 2025-10-04 · 144 CVEs total

CVE-2025-39932 9.8 CRITICAL smb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)
CVE-2025-39948 9.8 CRITICAL ice: fix Rx page leak on multi-buffer frames
CVE-2025-39946 9.8 CRITICAL tls: make sure to abort the stream if headers are bogus
CVE-2025-39933 9.4 CRITICAL smb: client: let recv_done verify data_offset, data_length and remaining_data_length
CVE-2025-39943 9.4 CRITICAL ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer
CVE-2023-53600 9.1 CRITICAL tunnels: fix kasan splat when generating ipv4 pmtu error
CVE-2023-53615 8.8 HIGH scsi: qla2xxx: Fix deletion race condition
CVE-2025-39952 8.8 HIGH wifi: wilc1000: avoid buffer overflow in WID string configuration
CVE-2023-53586 8.8 HIGH scsi: target: Fix multiple LUN_RESET handling
CVE-2022-50493 8.8 HIGH scsi: qla2xxx: Fix crash when I/O abort times out
CVE-2023-53598 8.4 HIGH bus: mhi: host: Range check CHDBOFF and ERDBOFF
CVE-2023-53566 7.8 HIGH netfilter: nft_set_rbtree: fix null deref on element insertion
CVE-2022-50492 7.8 HIGH drm/msm: fix use-after-free on probe deferral
CVE-2023-53560 7.8 HIGH tracing/histograms: Add histograms to hist_vars if they have referenced variables
CVE-2023-53559 7.8 HIGH ip_vti: fix potential slab-use-after-free in decode_session6
CVE-2023-53557 7.8 HIGH fprobe: Release rethook after the ftrace_ops is unregistered
CVE-2023-53537 7.8 HIGH f2fs: fix to avoid use-after-free for cached IPU bio
CVE-2023-53539 7.8 HIGH RDMA/rxe: Fix incomplete state save in rxe_requester
CVE-2023-53545 7.8 HIGH drm/amdgpu: unmap and remove csa_va properly
CVE-2023-53536 7.8 HIGH blk-crypto: make blk_crypto_evict_key() more robust

Showing top 20 of 144 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53589

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