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CVE-2024-40902— jfs: xattr: fix buffer overflow for invalid xattr

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。debug是Debug.js开源的一个以 Node.js 核心调试技术为模型的小型 JavaScript 调试实用程序。 Linux kernel 存在安全漏洞，该漏洞源于 jfs 文件系统的 xattr 处理中存在缓冲区溢出问题。

CVSS 7.8 · High EPSS 0.32% · P24

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f0dedb5c511ed82cbaff4997a8decf2351ba549f affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 1e84c9b1838152a87cf453270a5fa75c5037e83a affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< fc745f6e83cb650f9a5f2c864158e3a5ea76dad0 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 480e5bc21f2c42d90c2c16045d64d824dcdd5ec7 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 33aecc5799c93d3ee02f853cb94e201f9731f123 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 4598233d9748fe4db4e13b9f473588aa25e87d69 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b537cb2f4c4a1357479716a9c339c0bda03d873f affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 7c55b78818cfb732680c4a72ab270cc2d2ee3d0f affected
… +10 more rows
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I. Basic Information for CVE-2024-40902

Vulnerability Information
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Vulnerability Title
jfs: xattr: fix buffer overflow for invalid xattr
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel log in hex format as a form of debugging. But when that xattr size is bigger than the expected size, printing it out can cause an access off the end of the buffer. Fix this all up by properly restricting the size of the debug hex dump in the kernel log.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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。debug是Debug.js开源的一个以 Node.js 核心调试技术为模型的小型 JavaScript 调试实用程序。 Linux kernel 存在安全漏洞，该漏洞源于 jfs 文件系统的 xattr 处理中存在缓冲区溢出问题。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ f0dedb5c511ed82cbaff4997a8decf2351ba549f -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2024-40902

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III. Intelligence Information for CVE-2024-40902

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Other References for CVE-2024-40902 (8)

Same Patch Batch · Linux · 2024-07-12 · 122 CVEs total

CVE-2024-40999 9.8 CRITICAL net: ena: Add validation for completion descriptors consistency
CVE-2024-40923 9.8 CRITICAL vmxnet3: disable rx data ring on dma allocation failure
CVE-2024-40907 9.8 CRITICAL ionic: fix kernel panic in XDP_TX action
CVE-2024-40983 9.8 CRITICAL tipc: force a dst refcount before doing decryption
CVE-2024-40937 9.8 CRITICAL gve: Clear napi->skb before dev_kfree_skb_any()
CVE-2024-40911 8.8 HIGH wifi: cfg80211: Lock wiphy in cfg80211_get_station
CVE-2024-40910 8.8 HIGH ax25: Fix refcount imbalance on inbound connections
CVE-2024-40941 8.1 HIGH wifi: iwlwifi: mvm: don't read past the mfuart notifcation
CVE-2024-40953 7.9 HIGH KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()
CVE-2024-40954 7.8 HIGH net: do not leave a dangling sk pointer, when socket creation fails
CVE-2024-40918 7.8 HIGH parisc: Try to fix random segmentation faults in package builds
CVE-2024-40924 7.8 HIGH drm/i915/dpt: Make DPT object unshrinkable
CVE-2024-40925 7.8 HIGH block: fix request.queuelist usage in flush
CVE-2024-40943 7.8 HIGH ocfs2: fix races between hole punching and AIO+DIO
CVE-2024-40947 7.8 HIGH ima: Avoid blocking in RCU read-side critical section
CVE-2024-40949 7.8 HIGH mm: shmem: fix getting incorrect lruvec when replacing a shmem folio
CVE-2024-40990 7.8 HIGH RDMA/mlx5: Add check for srq max_sge attribute
CVE-2024-40986 7.8 HIGH dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
CVE-2024-40989 7.8 HIGH KVM: arm64: Disassociate vcpus from redistributor region on teardown
CVE-2024-40984 7.8 HIGH ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."

Showing top 20 of 122 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-40902

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