What’s Vulnerable › Vulnerabilities

CVE-2017-7358

• Severity: high (CVSS 7.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-04-05 · updated 2026-06-17
• Weakness: CWE-22

Description

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out.

Affected products

• Canonical Ubuntu Linux: 16.04, 16.10
• lightdm: through 1.22.0

References

• http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478
• http://www.securityfocus.com/bid/97486
• https://launchpad.net/bugs/1677924
• https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html
• https://www.exploit-db.com/exploits/41923/
• https://www.ubuntu.com/usn/usn-3255-1/
• http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478
• http://www.securityfocus.com/bid/97486
• https://launchpad.net/bugs/1677924
• https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html
• https://www.exploit-db.com/exploits/41923/
• https://www.ubuntu.com/usn/usn-3255-1/

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