CVE-2015-8768
9.8
CRITICAL · CVSS 3.0 · EPSS 2.7% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.75% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-264 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-02-13 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| click project | click |
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
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