CVE-2015-8768

Impact

click/install.py in click does not require files in package filesystem tarballs to start with ./ (dot slash), which allows remote attackers to install an alternate security policy and gain privileges via a crafted package, as demonstrated by the test.mmrow app for Ubuntu phone.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://bazaar.launchpad.net/~click-hackers/click/devel/revision/587
• http://ubuntu.com/usn/usn-2771-1
• http://www.openwall.com/lists/oss-security/2016/01/12/8
• http://www.securityfocus.com/bid/96386
• https://bugs.launchpad.net/ubuntu/+source/click/+bug/1506467
• https://code.launchpad.net/~cjwatson/click/audit-missing-dot-slash/+merge/274554
• https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/
• https://plus.google.com/+SzymonWaliczek/posts/3jbG2uiAniF
• http://bazaar.launchpad.net/~click-hackers/click/devel/revision/587
• http://ubuntu.com/usn/usn-2771-1
• http://www.openwall.com/lists/oss-security/2016/01/12/8
• http://www.securityfocus.com/bid/96386
• https://bugs.launchpad.net/ubuntu/+source/click/+bug/1506467
• https://code.launchpad.net/~cjwatson/click/audit-missing-dot-slash/+merge/274554
• https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/
• https://plus.google.com/+SzymonWaliczek/posts/3jbG2uiAniF