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CVE-2024-53217— NFSD: Prevent NULL dereference in nfsd4_process_cb_update()

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NFSD模块中nfsd4_process_cb_update函数中空指针取消引用问题。

CVSS 7.5 · High EPSS 0.73% · P54

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< d9a0d1f6e15859ea7a86a327f28491e23deaaa62 affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< cac1405e3ff6685a438e910ad719e0cf06af90ee affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< 752a75811f27300fe8131b0a1efc91960f6f88e7 affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< c5d90f9302742985a5078e42ac38de42c364c44a affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< 0c3b0e326f838787d229314d4de83af9c53347e8 affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< eb51733ae5fc73d95bd857d5da26f9f65b202a79 affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< 03178cd8f67227015debb700123987fe96275cd1 affected
dcbeaa68dbbdacbbb330a86c7fc95a28473fc209< 4a4ffc1aa9d618e41ad9151f40966e402e58a5a2 affected
… +12 more rows
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I. Basic Information for CVE-2024-53217

Vulnerability Information
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Vulnerability Title
NFSD: Prevent NULL dereference in nfsd4_process_cb_update()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent NULL dereference in nfsd4_process_cb_update() @ses is initialized to NULL. If __nfsd4_find_backchannel() finds no available backchannel session, setup_callback_client() will try to dereference @ses and segfault.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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NFSD模块中nfsd4_process_cb_update函数中空指针取消引用问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux dcbeaa68dbbdacbbb330a86c7fc95a28473fc209 ~ d9a0d1f6e15859ea7a86a327f28491e23deaaa62 -
Linux Linux 2.6.38 -

II. Public POCs for CVE-2024-53217

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III. Intelligence Information for CVE-2024-53217

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Patches & Fixes for CVE-2024-53217 (9)

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

CVE-2024-53186 9.8 CRITICAL ksmbd: fix use-after-free in SMB request handling
CVE-2024-53179 9.8 CRITICAL smb: client: fix use-after-free of signing key
CVE-2024-53169 9.8 CRITICAL nvme-fabrics: fix kernel crash while shutting down controller
CVE-2024-56645 9.8 CRITICAL can: j1939: j1939_session_new(): fix skb reference counting
CVE-2024-53209 9.8 CRITICAL bnxt_en: Fix receive ring space parameters when XDP is active
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-2024-53206 9.8 CRITICAL tcp: Fix use-after-free of nreq in reqsk_timer_handler().
CVE-2024-56640 9.8 CRITICAL net/smc: fix LGR and link use-after-free issue
CVE-2024-53176 9.8 CRITICAL smb: During unmount, ensure all cached dir instances drop their dentry
CVE-2024-56591 8.8 HIGH Bluetooth: hci_conn: Use disable_delayed_work_sync
CVE-2024-56626 8.8 HIGH ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write
CVE-2024-56669 8.8 HIGH iommu/vt-d: Remove cache tags before disabling ATS
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-2024-56653 8.8 HIGH Bluetooth: btmtk: avoid UAF in btmtk_process_coredump
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-2024-56538 7.8 HIGH drm: zynqmp_kms: Unplug DRM device before removal
CVE-2024-56624 7.8 HIGH iommufd: Fix out_fput in iommufd_fault_alloc()

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-2024-53217

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