CVE-2017-5123

high

Published — · Modified —

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CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.0

Description

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux.

Predictions

Exploit likelihood

55%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-43127 local linux

Chris Salls · 2017-11-06

Linux Kernel 4.13 (Ubuntu 17.10) - 'waitid()' SMEP/SMAP/Chrome Sandbox Privilege Escalation

Source code queued for fetch — refresh in a moment.

EDB-43029 local linux

@XeR_0x2A & @chaign_c · 2017-10-22

Linux Kernel 4.14.0-rc4+ - 'waitid()' Local Privilege Escalation

Source code queued for fetch — refresh in a moment.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`4.9.56-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`4.13.4-2`
sid	Fixed	`4.13.4-2`
forky	Fixed	`4.13.4-2`
bullseye	Fixed	`4.13.4-2`
bookworm	Fixed	`4.13.4-2`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.