CVE-2015-8768 Path traversal in n/a

What is CVE-2015-8768?

CVE-2015-8768 is a critical path traversal vulnerability in Canonical Ubuntu Linux, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-264

Which versions are affected by CVE-2015-8768?

It affects 2 products.

Products include Canonical Ubuntu Linux, Click Project Click.

How do I fix CVE-2015-8768?

Apply the vendor's patch.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2015-8768 being exploited?

There is no known exploitation of CVE-2015-8768 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fgm2-j3wp-hrw5, MINI-xxj3-3hwh-4r4q, UBUNTU-CVE-2015-8768, USN-2771-1.