CVE-2023-6931— Out-of-bounds write in Linux kernel's Performance Events system component
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux Kernel | 4.3.0< 4.19.302 | affected |
4.20.0< 5.4.264 | affected | ||
5.5.0< 5.10.204 | affected | ||
5.11.0< 5.15.143 | affected | ||
5.16.0< 6.1.68 | affected | ||
6.2.0< 6.6.7 | affected | ||
6.7.0 | unaffected | ||
382c27f4ed28f803b1f1473ac2d8db0afc795a1b | unaffected |
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I. Basic Information for CVE-2023-6931
Vulnerability Information
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Vulnerability Title
Out-of-bounds write in Linux kernel's Performance Events system component
Source: CVE Program / CVE List V5
Vulnerability Description
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
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
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
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 存在缓冲区错误漏洞，该漏洞源于Performance Events system组件中存在堆越界写入，perf_event 中的 read_size 可能会溢出，导致缓冲区溢出。
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 Kernel | 4.3.0 ~ 4.19.302 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2023-6931
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2023-6931 kernel panic PoC | https://github.com/jungju817/CVE-2023-6931 | POC Details |
| 2 | CVE-2023-6931 kernel panic PoC | https://github.com/K0n9-log/CVE-2023-6931 | POC Details |
AI-Generated POCPremium
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Patches & Fixes for CVE-2023-6931 (1)
Mailing List Discussions for CVE-2023-6931 (2)
Other References for CVE-2023-6931 (1)
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V. Comments for CVE-2023-6931
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