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CVE-2023-52809— scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()

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scsi:libfc模块存在空指针取消引用漏洞。

AI Predicted 4.4 Difficulty: Moderate EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< 930f0aaba4820d6362de4e6ed569eaf444f1ea4e affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< 77072ec41d6ab3718c3fc639bc149b8037caedfa affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< b549acf999824d4f751ca57965700372f2f3ad00 affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< bb83f79f90e92f46466adcfd4fd264a7ae0f0f01 affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< 56d78b5495ebecbb9395101f3be177cd0a52450b affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< 442fd24d7b6b29e4a9cd9225afba4142d5f522ba affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< f6fe7261b92b21109678747f36df9fdab1e30c34 affected
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a< 6b9ecf4e1032e645873933e5b43cbb84cac19106 affected
… +12 more rows
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I. Basic Information for CVE-2023-52809

Vulnerability Information
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Vulnerability Title
scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() fc_lport_ptp_setup() did not check the return value of fc_rport_create() which can return NULL and would cause a NULL pointer dereference. Address this issue by checking return value of fc_rport_create() and log error message on fc_rport_create() failed.
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scsi:libfc模块存在空指针取消引用漏洞。
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 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a ~ 930f0aaba4820d6362de4e6ed569eaf444f1ea4e -
Linux Linux 2.6.29 -

II. Public POCs for CVE-2023-52809

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III. Intelligence Information for CVE-2023-52809

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Other References for CVE-2023-52809 (9)

Same Patch Batch · Linux · 2024-05-21 · 361 CVEs total

CVE-2021-47427 9.8 CRITICAL scsi: iscsi: Fix iscsi_task use after free
CVE-2021-47328 9.8 CRITICAL scsi: iscsi: Fix conn use after free during resets
CVE-2023-52732 9.8 CRITICAL ceph: blocklist the kclient when receiving corrupted snap trace
CVE-2023-52741 9.8 CRITICAL cifs: Fix use-after-free in rdata->read_into_pages()
CVE-2021-47232 9.8 CRITICAL can: j1939: fix Use-after-Free, hold skb ref while in use
CVE-2023-52755 9.8 CRITICAL ksmbd: fix slab out of bounds write in smb_inherit_dacl()
CVE-2021-47378 9.8 CRITICAL nvme-rdma: destroy cm id before destroy qp to avoid use after free
CVE-2023-52769 8.8 HIGH wifi: ath12k: fix htt mlo-offset event locking
CVE-2021-47308 8.8 HIGH scsi: libfc: Fix array index out of bound exception
CVE-2023-52801 8.8 HIGH iommufd: Fix missing update of domains_itree after splitting iopt_area
CVE-2023-52798 8.8 HIGH wifi: ath11k: fix dfs radar event locking
CVE-2023-52846 8.8 HIGH hsr: Prevent use after free in prp_create_tagged_frame()
CVE-2023-52790 8.8 HIGH swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC
CVE-2023-52776 8.8 HIGH wifi: ath12k: fix dfs-radar and temperature event locking
CVE-2021-47388 8.8 HIGH mac80211: fix use-after-free in CCMP/GCMP RX
CVE-2021-47390 8.8 HIGH KVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect()
CVE-2021-47352 8.4 HIGH virtio-net: Add validation for used length
CVE-2023-52829 8.4 HIGH wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps()
CVE-2021-47240 8.4 HIGH net: qrtr: fix OOB Read in qrtr_endpoint_post
CVE-2021-47244 8.2 HIGH mptcp: Fix out of bounds when parsing TCP options

Showing top 20 of 361 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52809

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