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CVE-2024-40993— netfilter: ipset: Fix suspicious rcu_dereference_protected()

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 netfilter:ipset 组件在销毁所有集合时存在竞争条件问题。

AI Predicted 5.5 Difficulty: Hard EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3< 3799d02ae4208af08e81310770d8754863a246a1 affected
93b53c202b51a69e42ca57f5a183f7e008e19f83< 72d9611968867cc4c5509e7708b1507d692b797a affected
0f1bb77c6d837c9513943bc7c08f04c5cc5c6568< 523bed6489e089dd8040e72453fb79da47b144c2 affected
390b353d1a1da3e9c6c0fd14fe650d69063c95d6< 788d585e62f487bc4536d454937f737b70d39a33 affected
2ba35b37f780c6410bb4bba9c3072596d8576702< 94dd411c18d7fff9e411555d5c662d29416501e4 affected
90ae20d47de602198eb69e6cd7a3db3420abfc08< 3fc09e1ca854bc234e007a56e0f7431f5e2defb5 affected
4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10< 8ecd06277a7664f4ef018abae3abd3451d64e7a6 affected
6.1.95< 6.1.96 affected
… +2 more rows
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I. Basic Information for CVE-2024-40993

Vulnerability Information
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Vulnerability Title
netfilter: ipset: Fix suspicious rcu_dereference_protected()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix suspicious rcu_dereference_protected() When destroying all sets, we are either in pernet exit phase or are executing a "destroy all sets command" from userspace. The latter was taken into account in ip_set_dereference() (nfnetlink mutex is held), but the former was not. The patch adds the required check to rcu_dereference_protected() in ip_set_dereference().
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 netfilter:ipset 组件在销毁所有集合时存在竞争条件问题。
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 c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3 ~ 3799d02ae4208af08e81310770d8754863a246a1 -
Linux Linux 6.1.95 ~ 6.1.96 -

II. Public POCs for CVE-2024-40993

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III. Intelligence Information for CVE-2024-40993

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Other References for CVE-2024-40993 (7)

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

CVE-2024-40907 9.8 CRITICAL ionic: fix kernel panic in XDP_TX action
CVE-2024-40923 9.8 CRITICAL vmxnet3: disable rx data ring on dma allocation failure
CVE-2024-40983 9.8 CRITICAL tipc: force a dst refcount before doing decryption
CVE-2024-40999 9.8 CRITICAL net: ena: Add validation for completion descriptors consistency
CVE-2024-40937 9.8 CRITICAL gve: Clear napi->skb before dev_kfree_skb_any()
CVE-2024-40910 8.8 HIGH ax25: Fix refcount imbalance on inbound connections
CVE-2024-40911 8.8 HIGH wifi: cfg80211: Lock wiphy in cfg80211_get_station
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-2024-39495 7.8 HIGH greybus: Fix use-after-free bug in gb_interface_release due to race condition.
CVE-2024-40943 7.8 HIGH ocfs2: fix races between hole punching and AIO+DIO
CVE-2024-40958 7.8 HIGH netns: Make get_net_ns() handle zero refcount net
CVE-2024-40956 7.8 HIGH dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list
CVE-2024-40991 7.8 HIGH dmaengine: ti: k3-udma-glue: Fix of_k3_udma_glue_parse_chn_by_id()
CVE-2024-40990 7.8 HIGH RDMA/mlx5: Add check for srq max_sge attribute
CVE-2024-40989 7.8 HIGH KVM: arm64: Disassociate vcpus from redistributor region on teardown
CVE-2024-40986 7.8 HIGH dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
CVE-2024-40918 7.8 HIGH parisc: Try to fix random segmentation faults in package builds
CVE-2024-40947 7.8 HIGH ima: Avoid blocking in RCU read-side critical section
CVE-2024-40979 7.8 HIGH wifi: ath12k: fix kernel crash during resume

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-2024-40993

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