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CVE-2024-53099— bpf: Check validity of link->type in bpf_link_show_fdinfo()

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，该漏洞源于未正确调用BPF_LINK_TYPE()宏来注册链接类型，会导致在访问bpf_link_type_strs[link->type]数组时会出现越界访问。

CVSS 7.1 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 70ed506c3bbcfa846d4636b23051ca79fa4781f7< 79f87a6ec39fb5968049a6775a528bf58b25c20a affected
70ed506c3bbcfa846d4636b23051ca79fa4781f7< 24fec234d2ba9ca3c14e545ebe3fd6dcb47f074d affected
70ed506c3bbcfa846d4636b23051ca79fa4781f7< 4e8074bb33d18f56af30a0252cb3606d27eb1c13 affected
70ed506c3bbcfa846d4636b23051ca79fa4781f7< d5092b0a1aaf35d77ebd8d33384d7930bec5cb5d affected
70ed506c3bbcfa846d4636b23051ca79fa4781f7< b3eb1b6a9f745d6941b345f0fae014dc8bb06d36 affected
70ed506c3bbcfa846d4636b23051ca79fa4781f7< 8421d4c8762bd022cb491f2f0f7019ef51b4f0a7 affected
5.7 affected
< 5.7 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-53099

Vulnerability Information
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Vulnerability Title
bpf: Check validity of link->type in bpf_link_show_fdinfo()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Check validity of link->type in bpf_link_show_fdinfo() If a newly-added link type doesn't invoke BPF_LINK_TYPE(), accessing bpf_link_type_strs[link->type] may result in an out-of-bounds access. To spot such missed invocations early in the future, checking the validity of link->type in bpf_link_show_fdinfo() and emitting a warning when such invocations are missed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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，该漏洞源于未正确调用BPF_LINK_TYPE()宏来注册链接类型，会导致在访问bpf_link_type_strs[link->type]数组时会出现越界访问。
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 70ed506c3bbcfa846d4636b23051ca79fa4781f7 ~ 79f87a6ec39fb5968049a6775a528bf58b25c20a -
Linux Linux 5.7 -

II. Public POCs for CVE-2024-53099

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III. Intelligence Information for CVE-2024-53099

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Patches & Fixes for CVE-2024-53099 (6)

Same Patch Batch · Linux · 2024-11-25 · 6 CVEs total

CVE-2024-53096 7.8 HIGH mm: resolve faulty mmap_region() error path behaviour
CVE-2024-53100 7.8 HIGH nvme: tcp: avoid race between queue_lock lock and destroy
CVE-2024-53097 mm: krealloc: Fix MTE false alarm in __do_krealloc
CVE-2024-53098 drm/xe/ufence: Prefetch ufence addr to catch bogus address
CVE-2024-53101 fs: Fix uninitialized value issue in from_kuid and from_kgid

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-53099

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