VulnerabilityModified

CVE-2017-16355

MEDIUM 4.7EPSS 0.36%

Does this matter?

Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own.

Description

In agent/Core/SpawningKit/Spawner.h in Phusion Passenger 5.1.10 (fixed in Passenger Open Source 5.1.11 and Passenger Enterprise 5.1.10), if Passenger is running as root, it is possible to list the contents of arbitrary files on a system by symlinking a file named REVISION from the application root folder to a file of choice and querying passenger-status --show=xml.

CVSS 3.1: 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.36% probability · 30th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-200
Affected: phusion/passenger · debian/debian linux
Source: cve@mitre.org

EPSS trend

EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

https://blog.phusion.nl/2017/10/13/passenger-security-advisory-5-1-11/Third Party Advisory
https://github.com/phusion/passenger/commit/4043718264095cde6623c2cbe8c644541036d7bfPatch, Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/34Issue Tracking, Mailing List, Third Party Advisory
https://www.debian.org/security/2019/dsa-4415Third Party Advisory
https://blog.phusion.nl/2017/10/13/passenger-security-advisory-5-1-11/Third Party Advisory
https://github.com/phusion/passenger/commit/4043718264095cde6623c2cbe8c644541036d7bfPatch, Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/34Issue Tracking, Mailing List, Third Party Advisory
https://www.debian.org/security/2019/dsa-4415Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.