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CVEs-PoC/2021/CVE-2021-22555.md
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0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
2025-09-29 21:09:30 +02:00

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### [CVE-2021-22555](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22555)
![](https://img.shields.io/static/v1?label=Product&message=Linux%20Kernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=2.6.19-rc1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-787%20Out-of-bounds%20Write&color=brightgreen)
### 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
### POC
#### Reference
- http://packetstormsecurity.com/files/163528/Linux-Kernel-Netfilter-Heap-Out-Of-Bounds-Write.html
- http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html
- http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html
- http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html
- http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=9fa492cdc160cd27ce1046cb36f47d3b2b1efa21
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=b29c457a6511435960115c0f548c4360d5f4801d
- https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528
#### Github
- https://github.com/0xor0ne/awesome-list
- https://github.com/1nzag/CVE-2022-0995
- https://github.com/20142995/sectool
- https://github.com/43622283/awesome-cloud-native-security
- https://github.com/ARPSyndicate/cvemon
- https://github.com/AbdoFarid1/R00tKeep3r
- https://github.com/Al1ex/LinuxEelvation
- https://github.com/AndreevSemen/CVE-2022-0995
- https://github.com/AvavaAYA/ctf-writeup-collection
- https://github.com/B0nfee/CVE-2022-0995
- https://github.com/Bonfee/CVE-2022-0995
- https://github.com/Ch4nc3n/PublicExploitation
- https://github.com/ChoKyuWon/exploit_articles
- https://github.com/Coolaid003/Security-Research
- https://github.com/Dikens88/hopp
- https://github.com/DrewSC13/Linpeas
- https://github.com/EGI-Federation/SVG-advisories
- https://github.com/Faizan-Khanx/PYTHA-SHELL
- https://github.com/Ha0-Y/LinuxKernelExploits
- https://github.com/Ha0-Y/kernel-exploit-cve
- https://github.com/HaxorSecInfec/autoroot.sh
- https://github.com/Jalexander798/JA_Tools-Cybersecurity-Resource-2
- https://github.com/JlSakuya/Linux-Privilege-Escalation-Exploits
- https://github.com/JoneyJunior/cve-2021-22555
- https://github.com/LouisLiuNova/container-escape-exploits
- https://github.com/Maikefee/linux-exploit-hunter
- https://github.com/Metarget/awesome-cloud-native-security
- https://github.com/Metarget/metarget
- https://github.com/Mr-xn/Penetration_Testing_POC
- https://github.com/NaInSec/CVE-PoC-in-GitHub
- https://github.com/PIG-007/kernelAll
- https://github.com/PsychoH4x0r/Unknown1337-Auto-Root-
- https://github.com/SYRTI/POC_to_review
- https://github.com/Snoopy-Sec/Localroot-ALL-CVE
- https://github.com/TrojanAZhen/Self_Back
- https://github.com/WatPow/marine-ctf
- https://github.com/WhooAmii/POC_to_review
- https://github.com/XiaozaYa/CVE-Recording
- https://github.com/YunDingLab/struct_sanitizer
- https://github.com/a-ramses/security-research
- https://github.com/a-roshbaik/Linux-Privilege-Escalation-Exploits
- https://github.com/adavarski/HomeLab-Proxmox-k8s-DevSecOps-playground
- https://github.com/adavarski/HomeLab-k8s-DevSecOps-playground
- https://github.com/ahmmmeeedsherif/Linux-Privilege-Escalation-Enumeration
- https://github.com/arttnba3/D3CTF2023_d3kcache
- https://github.com/atesemre/awesome-cloud-native-security
- https://github.com/bachkhoasoft/awesome-list-ks
- https://github.com/bcoles/kasld
- https://github.com/bcoles/kernel-exploits
- https://github.com/bsauce/bsauce
- https://github.com/bsauce/kernel-exploit-factory
- https://github.com/bsauce/kernel-security-learning
- https://github.com/bytedance/vArmor
- https://github.com/cgwalters/container-cve-2021-22555
- https://github.com/cpuu/LinuxKernelCVE
- https://github.com/ctrsploit/ctrsploit
- https://github.com/daletoniris/CVE-2021-22555-esc-priv
- https://github.com/gglessner/Rocky
- https://github.com/google/security-research
- https://github.com/hac425xxx/heap-exploitation-in-real-world
- https://github.com/hacking-kubernetes/hacking-kubernetes.info
- https://github.com/hardenedvault/vault_range_poc
- https://github.com/hardenedvault/ved
- https://github.com/huike007/penetration_poc
- https://github.com/huisetiankong478/penetration_poc
- https://github.com/iridium-soda/container-escape-exploits
- https://github.com/j4k0m/really-good-cybersec
- https://github.com/jbeagles8755a0/security-research
- https://github.com/joydo/CVE-Writeups
- https://github.com/k0mi-tg/CVE-POC
- https://github.com/kdn111/linux-kernel-exploitation
- https://github.com/khanhdn111/linux-kernel-exploitation
- https://github.com/khanhdz-06/linux-kernel-exploitation
- https://github.com/khanhdz191/linux-kernel-exploitation
- https://github.com/khanhhdz/linux-kernel-exploitation
- https://github.com/khanhhdz06/linux-kernel-exploitation
- https://github.com/khanhnd123/linux-kernel-exploitation
- https://github.com/khnhdz/linux-kernel-exploitation
- https://github.com/knd06/linux-kernel-exploitation
- https://github.com/ldrx30/LinuxKernelExploits
- https://github.com/letsr00t/-2021-LOCALROOT-CVE-2021-22555
- https://github.com/letsr00t/CVE-2021-22555
- https://github.com/lions2012/Penetration_Testing_POC
- https://github.com/ma7moudShaaban/R00tKeep3r
- https://github.com/makoto56/penetration-suite-toolkit
- https://github.com/manas3c/CVE-POC
- https://github.com/masjohncook/netsec-project
- https://github.com/n0-traces/cve_monitor
- https://github.com/ndk06/linux-kernel-exploitation
- https://github.com/ndk191/linux-kernel-exploitation
- https://github.com/nisadevi11/Localroot-ALL-CVE
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/pashayogi/CVE-2021-22555
- https://github.com/reni2study/Cloud-Native-Security2
- https://github.com/shannonmullins/hopp
- https://github.com/ssr-111/linux-kernel-exploitation
- https://github.com/ssst0n3/ctrsploit_archived
- https://github.com/substing/internal_ctf
- https://github.com/talent-x90c/cve_list
- https://github.com/teamssix/container-escape-check
- https://github.com/trhacknon/Pocingit
- https://github.com/tukru/CVE-2021-22555
- https://github.com/veritas501/CVE-2021-22555-PipeVersion
- https://github.com/veritas501/pipe-primitive
- https://github.com/vlain1337/auto-lpe
- https://github.com/whoforget/CVE-POC
- https://github.com/winterwolf32/CVE-S---Penetration_Testing_POC-
- https://github.com/wkhnh06/linux-kernel-exploitation
- https://github.com/x90hack/vulnerabilty_lab
- https://github.com/xairy/linux-kernel-exploitation
- https://github.com/xuetusummer/Penetration_Testing_POC
- https://github.com/xyjl-ly/CVE-2021-22555-Exploit
- https://github.com/youwizard/CVE-POC
- https://github.com/zecool/cve
- https://github.com/zzcentury/PublicExploitation
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