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CVE-2023-52531— wifi: iwlwifi: mvm: Fix a memory corruption issue

AI Predicted 7.8 Difficulty: Moderate EPSS 0.24% · P15

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinux8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< 7c8faa31080342aec4903c9acb20caf82fcca1efaffected
8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< 6b3223449c959a8be94a1f042288059e40fcccb0affected
8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< f06cdd8d4ba5252986f51f80cc30263636397128affected
8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c< 8ba438ef3cacc4808a63ed0ce24d4f0942cfe55daffected
3.9affected
< 3.9unaffected
5.15.135≤ 5.15.*unaffected
6.1.57≤ 6.1.*unaffected
… +2 more rows
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I. Basic Information for CVE-2023-52531

Vulnerability Information
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Vulnerability Title
wifi: iwlwifi: mvm: Fix a memory corruption issue
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: Fix a memory corruption issue A few lines above, space is kzalloc()'ed for: sizeof(struct iwl_nvm_data) + sizeof(struct ieee80211_channel) + sizeof(struct ieee80211_rate) 'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine. At the end of this structure, there is the 'channels' flex array. Each element is of type 'struct ieee80211_channel'. So only 1 element is allocated in this array. When doing: mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels; We point at the first element of the 'channels' flex array. So this is fine. However, when doing: mvm->nvm_data->bands[0].bitrates = (void *)((u8 *)mvm->nvm_data->channels + 1); because of the "(u8 *)" cast, we add only 1 to the address of the beginning of the flex array. It is likely that we want point at the 'struct ieee80211_rate' allocated just after. Remove the spurious casting so that the pointer arithmetic works as expected.
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，该漏洞源于存在内存损坏问题。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c ~ 7c8faa31080342aec4903c9acb20caf82fcca1ef -
LinuxLinux 3.9 -

II. Public POCs for CVE-2023-52531

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III. Intelligence Information for CVE-2023-52531

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Other References for CVE-2023-52531 (4)

Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total

CVE-2023-52563drm/meson: fix memory leak on ->hpd_notify callback
CVE-2023-52581netfilter: nf_tables: fix memleak when more than 255 elements expired
CVE-2023-52574team: fix null-ptr-deref when team device type is changed
CVE-2023-52578net: bridge: use DEV_STATS_INC()
CVE-2023-52577dccp: fix dccp_v4_err()/dccp_v6_err() again
CVE-2023-52576x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
CVE-2023-52580net/core: Fix ETH_P_1588 flow dissector
CVE-2023-52566nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
CVE-2023-52565media: uvcvideo: Fix OOB read
CVE-2023-52564Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52567serial: 8250_port: Check IRQ data before use
CVE-2023-52562mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2023-52561arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
CVE-2023-52560mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
CVE-2023-52559iommu/vt-d: Avoid memory allocation in iommu_suspend()
CVE-2023-52518Bluetooth: hci_codec: Fix leaking content of local_codecs
CVE-2023-52532net: mana: Fix TX CQE error handling
CVE-2023-52530wifi: mac80211: fix potential key use-after-free
CVE-2023-52529HID: sony: Fix a potential memory leak in sony_probe()
CVE-2023-52528net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52531

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