CVE-2017-5123
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
8.8 HighPublic exploitFix available
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
3.74%Up 1.0 points since Nov 3, 2021
What each source reports
NVD Score used
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
CVE-2017-5123- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
CVE-2017-5123- Updated
- 2026-11-02
EUVDEUVD-2017-14232 No score
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
EUVD-2017-14232- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c436-43cf-26wj
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
GHSA-c436-43cf-26wj- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
CVE-2017-5123- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-5123
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
DEBIAN-CVE-2017-5123- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-5123
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.
- Record
UBUNTU-CVE-2017-5123- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10728-1 No score
kernel-devel-5.14.6-1.4 on GA media
These are all security issues fixed in the kernel-devel-5.14.6-1.4 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10728-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:13704-1 No score
kernel-devel-longterm-6.6.17-1.1 on GA media
These are all security issues fixed in the kernel-devel-longterm-6.6.17-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:13704-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
before 4.13.4-2 | 4.13.4-2 |
linuxDebian:13 |
before 4.13.4-2 | 4.13.4-2 |
linuxDebian:14 |
before 4.13.4-2 | 4.13.4-2 |
kernel-sourceopenSUSE:Tumbleweed From an advisory covering 119 CVEs |
before 5.14.6-1.4 | 5.14.6-1.4 |
kernel-sourceopenSUSE:Tumbleweed From an advisory covering 194 CVEs |
before 6.6.17-1.1 | 6.6.17-1.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Linux Kernel 4.14.0-rc4+ - 'waitid()' Local Privilege Escalation | 2017-10-22 |
| PoC in GitHub | FloatingGuy/CVE-2017-5123 | 2017-10-31 |
| PoC in GitHub | 0x5068656e6f6c/CVE-2017-5123 | 2017-11-03 |
| Exploit-DB | Linux Kernel 4.13 (Ubuntu 17.10) - 'waitid()' SMEP/SMAP/Chrome Sandbox Privilege Escalation | 2017-11-06 |
| PoC in GitHub | Synacktiv-contrib/exploiting-cve-2017-5123 | 2018-03-01 |
| PoC in GitHub | teawater/CVE-2017-5123 | 2018-06-08 |
| PoC in GitHub | c3r34lk1ll3r/CVE-2017-5123 | 2020-05-08 |
| PoC in GitHub | h1bAna/CVE-2017-5123 | 2023-03-11 |
| PoC in GitHub | NabilBoudra/cve-2017-5123 | 2025-12-14 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, exploits, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-5123 is a high vulnerability (CVSS 8.8) in Linux Kernel, published October 12, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.74%, the 89th percentile. Fixed in linux 4.13.4-2.
References
crbug.com/772848
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=96ca579a1ecc943b75beba58bebb0356f6cc4b51
security.netapp.com/advisory/ntap-20211223-0003
nvd.nist.gov/vuln/detail/CVE-2017-5123
github.com/advisories/GHSA-c436-43cf-26wj
security-tracker.debian.org/tracker/CVE-2017-5123
Show 194 moreShow less
ubuntu.com/security/CVE-2017-5123
cve.org/CVERecord?id=CVE-2017-5123
suse.com/security/cve/CVE-2017-1000251
This page doesn't list everything
Left out here: 2 references. The JSON record has them.