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CVE-2022-49279— NFSD: prevent integer overflow on 32 bit systems

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32位系统上可能导致整数溢出。

CVSS 8.2 · High EPSS 0.63% · P49

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 37c88763def8474bc0972fbd1adb0d21670104b7< 3a2789e8ccb4a3e2a631f6817a2d3bb98b8c4fd8 affected
37c88763def8474bc0972fbd1adb0d21670104b7< ce1aa09cc14ed625104acc2d487bd92b9a88efe2 affected
37c88763def8474bc0972fbd1adb0d21670104b7< 7af164fa2f1abc577d357d22d83a2f3490875d7e affected
37c88763def8474bc0972fbd1adb0d21670104b7< 303cd6173dce0a28d26526c77814eb90a41bd898 affected
37c88763def8474bc0972fbd1adb0d21670104b7< 79b1c54fc6ce09ee0d5fe088bb3de26ae2150e3c affected
37c88763def8474bc0972fbd1adb0d21670104b7< e4195d27306ea468a6dc3a27af6f586709951229 affected
37c88763def8474bc0972fbd1adb0d21670104b7< 23a9dbbe0faf124fc4c139615633b9d12a3a89ef affected
4.17 affected
… +8 more rows
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I. Basic Information for CVE-2022-49279

Vulnerability Information
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Vulnerability Title
NFSD: prevent integer overflow on 32 bit systems
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent integer overflow on 32 bit systems On a 32 bit system, the "len * sizeof(*p)" operation can have an integer overflow.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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32位系统上可能导致整数溢出。
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 37c88763def8474bc0972fbd1adb0d21670104b7 ~ 3a2789e8ccb4a3e2a631f6817a2d3bb98b8c4fd8 -
Linux Linux 4.17 -

II. Public POCs for CVE-2022-49279

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III. Intelligence Information for CVE-2022-49279

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Patches & Fixes for CVE-2022-49279 (7)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49201 9.8 CRITICAL ibmvnic: fix race between xmit and reset
CVE-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49561 9.8 CRITICAL netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49093 9.8 CRITICAL skbuff: fix coalescing for page_pool fragment recycling
CVE-2022-49194 9.8 CRITICAL net: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-49149 9.8 CRITICAL rxrpc: Fix call timer start racing with call destruction
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49111 8.8 HIGH Bluetooth: Fix use after free in hci_send_acl
CVE-2022-49479 8.8 HIGH mt76: fix tx status related use-after-free race on station removal
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING
CVE-2022-49470 8.8 HIGH Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49500 8.8 HIGH wl1251: dynamically allocate memory used for DMA
CVE-2022-49238 8.8 HIGH ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49279

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