CVE-2017-8900
UnknownEPSS 0.42%
Last modified
CVE-2017-8900 is a vulnerability of currently unknown severity. LightDM through 1.22.0, when systemd is used in Ubuntu 16.10 and 17.x, allows physically proximate attackers to bypass intended AppArmor restrictions and visit the home directories of arbitrary users by establishing a guest session.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
Description
LightDM through 1.22.0, when systemd is used in Ubuntu 16.10 and 17.x, allows physically proximate attackers to bypass intended AppArmor restrictions and visit the home directories of arbitrary users by establishing a guest session.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lightdm Project | Lightdm | <= 1.22.0 |
References
- http://www.securityfocus.com/bid/98554Third Party Advisory, VDB Entry
- https://launchpad.net/bugs/1663157Issue Tracking, Patch, Vendor Advisory
- https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-8900.htmlPatch, Vendor Advisory
- https://www.ubuntu.com/usn/usn-3285-1/Patch, Vendor Advisory
- http://www.securityfocus.com/bid/98554Third Party Advisory, VDB Entry
- https://launchpad.net/bugs/1663157Issue Tracking, Patch, Vendor Advisory
- https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-8900.htmlPatch, Vendor Advisory
- https://www.ubuntu.com/usn/usn-3285-1/Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-8900?
LightDM through 1.22.0, when systemd is used in Ubuntu 16.10 and 17.x, allows physically proximate attackers to bypass intended AppArmor restrictions and visit the home directories of arbitrary users by establishing a guest session.
How severe is CVE-2017-8900?
Severity scoring for CVE-2017-8900 is pending analysis. The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2017-8900?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-8900?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST