CVE-2018-1000117

NameCVE-2018-1000117
DescriptionPython Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
python2.7 (PTS)buster2.7.16-2+deb10u1fixed
buster (security)2.7.16-2+deb10u3fixed
bullseye2.7.18-8+deb11u1fixed
python3.7 (PTS)buster3.7.3-2+deb10u3fixed
buster (security)3.7.3-2+deb10u6fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
python2.7source(unstable)(not affected)
python3.4source(unstable)(not affected)
python3.5source(unstable)(not affected)
python3.6source(unstable)(not affected)
python3.7source(unstable)(not affected)

Notes

- python3.7 <not-affected> (Windows-specific)
- python3.6 <not-affected> (Windows-specific)
- python3.5 <not-affected> (Windows-specific)
- python3.4 <not-affected> (Windows-specific)
- python2.7 <not-affected> (os.symlink for Windows introduced in 3.2)
http://hg.python.org/lookup/6921e73e33edc3c61bc2d78ed558eaa22a89a564
https://bugs.python.org/issue33001

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