DescriptionNagios NRPE 3.2.1 has Insufficient Filtering because, for example, nasty_metachars interprets \n as the character \ and the character n (not as the \n newline sequence). This can cause command injection.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nagios-nrpe (PTS)stretch3.0.1-3+deb9u1vulnerable
bullseye, sid4.0.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nagios-nrpesourcejessie(not affected)


[buster] - nagios-nrpe <no-dsa> (Minor issue)
[stretch] - nagios-nrpe <no-dsa> (Minor issue)
[jessie] - nagios-nrpe <not-affected> (Vulnerable code introduced later) (part for proper processing of nasty_metachars)

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