CVE-2018-11236

NameCVE-2018-11236
Descriptionstdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.
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 severitymedium (attack range: remote)
Debian Bugs899071

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
glibc (PTS)jessie (security), jessie2.19-18+deb8u10vulnerable
stretch2.24-11+deb9u3vulnerable
stretch (security)2.24-11+deb9u1vulnerable
buster, sid2.27-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
eglibcsource(unstable)(unfixed)medium
glibcsource(unstable)(unfixed)low899071

Notes

[stretch] - glibc <no-dsa> (Minor issue, can be fixed along in future DSA or point update)
[jessie] - glibc <no-dsa> (Minor issue, can be fixed along in future DSA or point update)
https://sourceware.org/bugzilla/show_bug.cgi?id=22786
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5460617d1567657621107d895ee2dd83bc1f88f2

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