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CVE-2024-46697— nfsd: ensure that nfsd4_fattr_args.context is zeroed out

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，该漏洞源于未能在nfsd4_encode_fattr4之前正确初始化args.context，可能导致未初始化的内存释放。

CVSS 9.8 · Critical EPSS 0.42% · P35

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux f59388a579c6a395de8f7372b267d3abecd8d6bf< dd65b324174a64558a16ebbf4c3266e5701185d0 affected
f59388a579c6a395de8f7372b267d3abecd8d6bf< f58bab6fd4063913bd8321e99874b8239e9ba726 affected
6.7 affected
< 6.7 unaffected
6.10.8≤ 6.10.* unaffected
6.11≤ * unaffected
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I. Basic Information for CVE-2024-46697

Vulnerability Information
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Vulnerability Title
nfsd: ensure that nfsd4_fattr_args.context is zeroed out
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4_fattr_args.context is zeroed out If nfsd4_encode_fattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'll then try to free. Initialize it early.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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，该漏洞源于未能在nfsd4_encode_fattr4之前正确初始化args.context，可能导致未初始化的内存释放。
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 f59388a579c6a395de8f7372b267d3abecd8d6bf ~ dd65b324174a64558a16ebbf4c3266e5701185d0 -
Linux Linux 6.7 -

II. Public POCs for CVE-2024-46697

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III. Intelligence Information for CVE-2024-46697

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Same Patch Batch · Linux · 2024-09-13 · 40 CVEs total

CVE-2024-46695 9.8 CRITICAL selinux,smack: don't bypass permissions check in inode_setsecctx hook
CVE-2024-46696 9.8 CRITICAL nfsd: fix potential UAF in nfsd4_cb_getattr_release
CVE-2024-46690 9.8 CRITICAL nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
CVE-2024-46673 7.8 HIGH scsi: aacraid: Fix double-free on probe failure
CVE-2024-46713 7.8 HIGH perf/aux: Fix AUX buffer serialization
CVE-2024-46710 7.8 HIGH drm/vmwgfx: Prevent unmapping active read buffers
CVE-2024-46709 7.8 HIGH drm/vmwgfx: Fix prime with external buffers
CVE-2024-46705 7.8 HIGH drm/xe: reset mmio mappings with devm
CVE-2024-46687 7.8 HIGH btrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk()
CVE-2024-46683 7.8 HIGH drm/xe: prevent UAF around preempt fence
CVE-2024-46674 7.8 HIGH usb: dwc3: st: fix probed platform device ref count on probe error path
CVE-2024-46680 7.8 HIGH Bluetooth: btnxpuart: Fix random crash seen while removing driver
CVE-2024-46678 7.8 HIGH bonding: change ipsec_lock from spin lock to mutex
CVE-2024-46698 video/aperture: optionally match the device in sysfb_disable()
CVE-2024-46712 drm/vmwgfx: Disable coherent dumb buffers without 3d
CVE-2024-46711 mptcp: pm: fix ID 0 endp usage after multiple re-creations
CVE-2024-46675 usb: dwc3: core: Prevent USB core invalid event buffer address access
CVE-2024-46708 pinctrl: qcom: x1e80100: Fix special pin offsets
CVE-2024-46676 nfc: pn533: Add poll mod list filling check
CVE-2024-46707 KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-46697

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