CVE-2016-9401

NameCVE-2016-9401
Descriptionpopd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: local)
Debian Bugs844727

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bash (PTS)wheezy4.2+dfsg-0.1+deb7u3vulnerable
wheezy (security)4.2+dfsg-0.1+deb7u4vulnerable
jessie4.3-11+deb8u1vulnerable
buster, sid, stretch4.4-5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bashsource(unstable)4.4-3low844727

Notes

[jessie] - bash <no-dsa> (Minor issue)
[wheezy] - bash <no-dsa> (Minor issue)
Upstream bash considers this issue only to be a bug.
Proposed patch: https://lists.gnu.org/archive/html/bug-bash/2016-11/msg00116.html
Fixed by (4.4): https://ftp.gnu.org/pub/gnu/bash/bash-4.4-patches/bash44-006

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