CVE-2018-12026
Description
During the spawning of a malicious Passenger-managed application, SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows such applications to replace key files or directories in the spawning communication directory with symlinks. This then could result in arbitrary reads and writes, which in turn can result in information disclosure and privilege escalation.
Predictions
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 withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
References
- https://blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixes/
- https://nvd.nist.gov/vuln/detail/CVE-2018-12026
- https://github.com/phusion/passenger/commit/fd3717a3cd357aa0e80e1e81d4dc94a1eaf928f1
- https://blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixes
- https://blog.phusion.nl/passenger-5-3-2
- https://github.com/phusion/passenger
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2018-12026.yml
- https://security.gentoo.org/glsa/201807-02
- https://security-tracker.debian.org/tracker/CVE-2018-12026
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.