DescriptionGNU glibc 2.3.4 before, 2.3.3 before, and 2.3.2 before 2.3.2-r10 does not restrict the use of LD_DEBUG for a setuid program, which allows local users to gain sensitive information, such as the list of symbols used by the program.
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 (attack range: local)
Debian Bugs272210

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
glibc (PTS)jessie (security), jessie2.19-18+deb8u10fixed
stretch (security)2.24-11+deb9u1fixed
buster, sid2.27-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


according to GOTO Masanori this is not a security problem
Jakub Jelinek confirms
Although not a real issue we should play safe with 2.3.5, where the code
was reorganized

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