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Debian LTS: Security Advisory for puma (DLA-3023-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'puma' package(s) announced via the DLA-3023-1 advisory.
Insight
Insight
Several security vulnerabilities have been discovered in puma, a web server for Ruby/Rack applications. These flaws may lead to information leakage due to not always closing response bodies, allowing untrusted input in a response header (HTTP Response Splitting) and thus potentially facilitating several other attacks like cross-site scripting. A poorly-behaved client could also use keepalive requests to monopolize Puma's reactor and create a denial of service attack.
Affected Software
Affected Software
'puma' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 9 stretch, these problems have been fixed in version 3.6.0-1+deb9u2. We recommend that you upgrade your puma packages.