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CVE-2023-52433— netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction

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 模块存在问题，可能导致跳过此事务中新元素的同步GC。

CVSS 7.8 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 13

VendorProduct Version RangeStatus
Linux Linux cb4d00b563675ba8ff6ef94b077f58d816f68ba3< 9db9feb841f7449772f9393c16b9ef4536d8c127 affected
c357648929c8dff891502349769aafb8f0452bc2< 03caf75da1059f0460666c826e9f50e13dfd0017 affected
146c76866795553dbc19998f36718d7986ad302b< c323ed65f66e5387ee0a73452118d49f1dae81b8 affected
479a2cf5259347d6a1f658b0f791d27a34908e91< 9af7dfb3c9d7985172a240f85e684c5cd33e29ce affected
df650d6a4bf47248261b61ef6b174d7c54034d15< 9a8c544158f68f656d1734eb5ba00c4f817b76b1 affected
f6c383b8c31a93752a52697f8430a71dcbc46adf< e3213ff99a355cda811b41e8dbb3472d13167a3a affected
f6c383b8c31a93752a52697f8430a71dcbc46adf< 2ee52ae94baabf7ee09cf2a8d854b990dac5d0e4 affected
e4d71d6a9c7db93f7bf20c3a0f0659d63d7de681 affected
… +5 more rows
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I. Basic Information for CVE-2023-52433

Vulnerability Information
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Vulnerability Title
netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction New elements in this transaction might expired before such transaction ends. Skip sync GC for such elements otherwise commit path might walk over an already released object. Once transaction is finished, async GC will collect such expired element.
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。 Linux kernel 存在安全漏洞，该漏洞源于 netfilter 模块存在问题，可能导致跳过此事务中新元素的同步GC。
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 cb4d00b563675ba8ff6ef94b077f58d816f68ba3 ~ 9db9feb841f7449772f9393c16b9ef4536d8c127 -
Linux Linux 6.5 -

II. Public POCs for CVE-2023-52433

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III. Intelligence Information for CVE-2023-52433

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Other References for CVE-2023-52433 (7)

Same Patch Batch · Linux · 2024-02-20 · 7 CVEs total

CVE-2023-52434 8.1 HIGH smb: client: fix potential OOBs in smb2_parse_contexts()
CVE-2024-26581 7.8 HIGH netfilter: nft_set_rbtree: skip end interval element from gc
CVE-2023-52436 7.8 HIGH f2fs: explicitly null-terminate the xattr list
CVE-2023-52438 7.8 HIGH binder: fix use-after-free in shinker's callback
CVE-2023-52439 7.8 HIGH uio: Fix use-after-free in uio_open
CVE-2023-52435 net: prevent mss overflow in skb_segment()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52433

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