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CVE-2015-8768

CRITICAL

9.8

CVSS Severity Score

EPSS Score0.1270%

EPSS Percentile13.25th

PublishedFeb 13, 2017

Last ModifiedMay 13, 2026

Vulnerability Description

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 Platforms (CPE)

📦

Click Project

Click

All versions

💻

Canonical

Ubuntu Linux

= 14.04

💻

Canonical

Ubuntu Linux

= 15.04

References & Advisories

🔗 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

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