What’s Vulnerable › Vulnerabilities

CVE-2013-4136

• Severity: medium (CVSS 4.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-09-30 · updated 2026-06-16
• Weakness: CWE-59

Description

ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership of arbitrary directories via a symlink attack on a directory with a predictable name in /tmp/.

Affected products

• Phusion Passenger: through 4.0.5; 4.0.1, 4.0.2, 4.0.3, 4.0.4

References

• http://rhn.redhat.com/errata/RHSA-2013-1136.html
• http://www.openwall.com/lists/oss-security/2013/07/16/6
• https://code.google.com/p/phusion-passenger/issues/detail?id=910
• https://github.com/phusion/passenger/blob/release-4.0.6/NEWS
• https://github.com/phusion/passenger/commit/5483b3292cc2af1c83033eaaadec20dba4dcfd9b
• http://rhn.redhat.com/errata/RHSA-2013-1136.html
• http://www.openwall.com/lists/oss-security/2013/07/16/6
• https://code.google.com/p/phusion-passenger/issues/detail?id=910
• https://github.com/phusion/passenger/blob/release-4.0.6/NEWS
• https://github.com/phusion/passenger/commit/5483b3292cc2af1c83033eaaadec20dba4dcfd9b

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