Description
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.13.4-2 | — |
| Debian 13 | linux | 4.13.4-2 | — |
| Debian 12 | linux | 4.13.4-2 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 5.14.6-1.4 | openSUSE-SU-2024:13704-1, openSUSE-SU-2024:10728-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 2
- Linux Kernel 4.13 (Ubuntu 17.10) - 'waitid()' SMEP/SMAP/Chrome Sandbox Privilege Escalation EDB-43127 · local · Nov 6, 2017
- Linux Kernel 4.14.0-rc4+ - 'waitid()' Local Privilege Escalation EDB-43029 · local · Oct 22, 2017
GitHub 7 repositories
-
c3r34lk1ll3r/CVE-2017-5123 ★ 33 · May 8, 2020
PoC CVE-2017-5123 - LPE - Bypassing SMEP/SMAP. No KASLR
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0x5068656e6f6c/CVE-2017-5123 ★ 5 · Nov 3, 2017
Exploit for the linux kernel vulnerability CVE-2017-5123
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Synacktiv-contrib/exploiting-cve-2017-5123 ★ 4 · Mar 1, 2018
Source code and configuration files related to our article in MISC96
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FloatingGuy/CVE-2017-5123 ★ 1 · Oct 31, 2017
linux kernel exploit
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NabilBoudra/cve-2017-5123 ★ 0 · Dec 14, 2025
-
h1bAna/CVE-2017-5123 ★ 0 · Mar 11, 2023
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teawater/CVE-2017-5123 ★ 0 · Jun 8, 2018
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- openSUSE-SU-2024:13704-1 kernel-devel-longterm-6.6.17-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10728-1 kernel-devel-5.14.6-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026