CVE-2015-8768

EUVD-2015-8640
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
Affected Products (NVD)
VendorProductVersion
click_projectclick
-
canonicalubuntu_linux
14.04
canonicalubuntu_linux
15.04
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
click
precise
dne
trusty
Fixed 0.4.21.1ubuntu0.2
released
vivid
Fixed 0.4.38.5ubuntu0.2
released
Common Weakness Enumeration
References
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