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CVE-2024-26973— fat: fix uninitialized field in nostale filehandles

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，该漏洞源于未初始化字段。

AI Predicted 3.3 Difficulty: Easy EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< 9840d1897e28f8733cc1e38f97e044f987dc0a63 affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< f52d7663a10a1266a2d3871a6dd8fd111edc549f affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< a276c595c3a629170b0f052a3724f755d7c6adc6 affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< b7fb63e807c6dadf7ecc1d43448c4f1711d7eeee affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< c8cc05de8e6b5612b6e9f92c385c1a064b0db375 affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< 03a7e3f2ba3ca25f1da1d3898709a08db14c1abb affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< 74f852654b8b7866f15323685f1e178d3386c688 affected
ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2< cdd33d54e789d229d6d5007cbf3f53965ca1a5c6 affected
… +12 more rows
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I. Basic Information for CVE-2024-26973

Vulnerability Information
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Vulnerability Title
fat: fix uninitialized field in nostale filehandles
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fat: fix uninitialized field in nostale filehandles When fat_encode_fh_nostale() encodes file handle without a parent it stores only first 10 bytes of the file handle. However the length of the file handle must be a multiple of 4 so the file handle is actually 12 bytes long and the last two bytes remain uninitialized. This is not great at we potentially leak uninitialized information with the handle to userspace. Properly initialize the full handle length.
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，该漏洞源于未初始化字段。
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 ea3983ace6b79c96e6ab3d3837e2eaf81ab881e2 ~ 9840d1897e28f8733cc1e38f97e044f987dc0a63 -
Linux Linux 3.10 -

II. Public POCs for CVE-2024-26973

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III. Intelligence Information for CVE-2024-26973

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Mailing List Discussions for CVE-2024-26973 (2)

Other References for CVE-2024-26973 (8)

Same Patch Batch · Linux · 2024-05-01 · 159 CVEs total

CVE-2024-27388 9.8 CRITICAL SUNRPC: fix some memleaks in gssx_dec_option_array
CVE-2024-26953 9.8 CRITICAL net: esp: fix bad handling of pages from page_pool
CVE-2024-26931 8.8 HIGH scsi: qla2xxx: Fix command flush on cable pull
CVE-2024-26990 8.8 HIGH KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
CVE-2024-27053 8.8 HIGH wifi: wilc1000: fix RCU usage in connect path
CVE-2024-26952 8.3 HIGH ksmbd: fix potencial out-of-bounds when buffer offset is invalid
CVE-2024-26936 8.2 HIGH ksmbd: validate request buffer size in smb2_allocate_rsp_buf()
CVE-2024-27018 8.2 HIGH netfilter: br_netfilter: skip conntrack input hook for promisc packets
CVE-2024-26980 8.2 HIGH ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf
CVE-2024-26954 8.1 HIGH ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
CVE-2024-26994 7.8 HIGH speakup: Avoid crash on very long word
CVE-2024-26966 7.8 HIGH clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
CVE-2024-26974 7.8 HIGH crypto: qat - resolve race condition during AER recovery
CVE-2024-26976 7.8 HIGH KVM: Always flush async #PF workqueue when vCPU is being destroyed
CVE-2024-27062 7.8 HIGH nouveau: lock the client object tree.
CVE-2024-27061 7.8 HIGH crypto: sun8i-ce - Fix use after free in unprepare
CVE-2024-26983 7.8 HIGH bootconfig: use memblock_free_late to free xbc memory to buddy
CVE-2024-27058 7.8 HIGH tmpfs: fix race on handling dquot rbtree
CVE-2024-27056 7.8 HIGH wifi: iwlwifi: mvm: ensure offloading TID queue exists
CVE-2024-27017 7.8 HIGH netfilter: nft_set_pipapo: walk over current view on netlink dump

Showing top 20 of 159 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26973

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