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I. Basic Information for CVE-2021-22555
Vulnerability Information
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Vulnerability Title
Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE
Source: NVD (National Vulnerability Database)
Vulnerability Description
A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
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net/netfilter/x_tables.c 中的堆越界写入。该漏洞允许攻击者通过用户名空间获得权限或引起 DoS。
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 Kernel 2.6.19-rc1 ~ unspecified -
II. Public POCs for CVE-2021-22555
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/JoneyJunior/cve-2021-22555POC Details
2CVE-2021-22555 Exploithttps://github.com/xyjl-ly/CVE-2021-22555-ExploitPOC Details
3Nonehttps://github.com/cgwalters/container-cve-2021-22555POC Details
4Nonehttps://github.com/daletoniris/CVE-2021-22555-esc-privPOC Details
5CVE-2021-22555 exploit rewritten with pipe primitivehttps://github.com/veritas501/CVE-2021-22555-PipeVersionPOC Details
6Script of Network Security Project - Attack on CVE-2021-22555https://github.com/masjohncook/netsec-projectPOC Details
7This repo hosts TUKRU's Linux Privilege Escalation exploit (CVE-2021-22555). It demonstrates gaining root privileges via a vulnerability. Tested on Ubuntu 5.8.0-48-generic and COS 5.4.89+. Use responsibly and ethically.https://github.com/tukru/CVE-2021-22555POC Details
8Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation'https://github.com/pashayogi/CVE-2021-22555POC Details
9Nonehttps://github.com/kakaroot1337/-2021-LOCALROOT-CVE-2021-22555POC Details
10Nonehttps://github.com/letsr00t/-2021-LOCALROOT-CVE-2021-22555POC Details
11Nonehttps://github.com/letsr00t/CVE-2021-22555POC Details
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III. Intelligence Information for CVE-2021-22555
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IV. Related Vulnerabilities
Same product: Linux Kernel
Same vendor: n/a
Same weakness: CWE-787
V. Comments for CVE-2021-22555

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