Description

The wordexp function in GNU C Library (aka glibc) 2.21 does not enforce the WRDE_NOCMD flag, which allows context-dependent attackers to execute arbitrary commands, as demonstrated by input containing "$((`...`))".

References

http://linux.oracle.com/errata/ELSA-2015-0016.html

http://linux.oracle.com/errata/ELSA-2015-0092.html

http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html

http://rhn.redhat.com/errata/RHSA-2014-2023.html

http://seclists.org/oss-sec/2014/q4/730

http://secunia.com/advisories/62100

http://secunia.com/advisories/62146

http://www.debian.org/security/2015/dsa-3142

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

http://www.securityfocus.com/bid/71216

http://www.ubuntu.com/usn/USN-2432-1

https://exchange.xforce.ibmcloud.com/vulnerabilities/98852

https://security.gentoo.org/glsa/201602-02

https://sourceware.org/bugzilla/show_bug.cgi?id=17625

https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=a39208bd7fb76c1b01c127b4c61f9bfd915bfe7c

https://sourceware.org/ml/libc-alpha/2014-11/msg00519.html

Details

Risk Information

CVSS v2