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CVE-2023-52502— net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()

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，该漏洞源于内存释放后重用。

CVSS 8.8 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 8f50020ed9b81ba909ce9573f9d05263cdebf502< e863f5720a5680e50c4cecf12424d7cc31b3eb0a affected
8f50020ed9b81ba909ce9573f9d05263cdebf502< 7adcf014bda16cdbf804af5c164d94d5d025db2d affected
8f50020ed9b81ba909ce9573f9d05263cdebf502< 6ac22ecdaad2ecc662048f8c6b0ceb1ca0699ef9 affected
8f50020ed9b81ba909ce9573f9d05263cdebf502< d888d3f70b0de32b4f51534175f039ddab15eef8 affected
8f50020ed9b81ba909ce9573f9d05263cdebf502< e4f2611f07c87b3ddb57c4b9e8efcd1e330fc3dc affected
8f50020ed9b81ba909ce9573f9d05263cdebf502< d1af8a39cf839d93c8967fdd858f6bbdc3e4a15c affected
8f50020ed9b81ba909ce9573f9d05263cdebf502< 31c07dffafce914c1d1543c135382a11ff058d93 affected
3.6 affected
… +8 more rows
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I. Basic Information for CVE-2023-52502

Vulnerability Information
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Vulnerability Title
net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the lock. nfc_llcp_sock_get_sn() has a similar problem. Finally nfc_llcp_recv_snl() needs to make sure the socket found by nfc_llcp_sock_from_sn() does not disappear.
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，该漏洞源于内存释放后重用。
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 8f50020ed9b81ba909ce9573f9d05263cdebf502 ~ e863f5720a5680e50c4cecf12424d7cc31b3eb0a -
Linux Linux 3.6 -

II. Public POCs for CVE-2023-52502

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III. Intelligence Information for CVE-2023-52502

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Other References for CVE-2023-52502 (7)

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

CVE-2023-52515 9.8 CRITICAL RDMA/srp: Do not call scsi_done() from srp_abort()
CVE-2023-52530 8.8 HIGH wifi: mac80211: fix potential key use-after-free
CVE-2023-52522 8.8 HIGH net: fix possible store tearing in neigh_periodic_work()
CVE-2024-26621 8.2 HIGH mm: huge_memory: don't force huge page alignment on 32 bit
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
CVE-2023-52574 7.8 HIGH team: fix null-ptr-deref when team device type is changed
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52503 7.8 HIGH tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
CVE-2023-52517 7.8 HIGH spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
CVE-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
CVE-2023-52581 netfilter: nf_tables: fix memleak when more than 255 elements expired
CVE-2023-52564 Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52563 drm/meson: fix memory leak on ->hpd_notify callback
CVE-2023-52562 mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2022-48627 vt: fix memory overlapping when deleting chars in the buffer
CVE-2023-52518 Bluetooth: hci_codec: Fix leaking content of local_codecs
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()

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-2023-52502

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