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I. Basic Information for CVE-2020-8835
Vulnerability Information
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Vulnerability Title
Linux kernel bpf verifier vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 5.5.0及更高版本中存在安全漏洞。攻击者可利用该漏洞在系统上执行任意代码。
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
VendorProductAffected VersionsCPESubscribe
Linux kernelLinux kernel 5.6-stable ~ 5.6.1 -
II. Public POCs for CVE-2020-8835
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/Prabhashaka/Exploitation-CVE-2020-8835POC Details
2Nonehttps://github.com/snappyJack/Rick_write_exp_CVE-2020-8835POC Details
3Nonehttps://github.com/zilong3033/CVE-2020-8835POC Details
4Nonehttps://github.com/SplendidSky/CVE-2020-8835POC Details
5Formal verification example for CVE-2020-8835https://github.com/digamma-ai/CVE-2020-8835-verificationPOC Details
6Nonehttps://github.com/johnatag/INF8602-CVE-2020-8835POC Details
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III. Intelligence Information for CVE-2020-8835
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IV. Related Vulnerabilities
Same product: Linux kernel
Same vendor: Linux kernel
V. Comments for CVE-2020-8835

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