Vulnerability identifier: #VU41741
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
GNOME Display Manager
Client/Desktop applications /
Other client software
Vendor: Gnome Development Team
Description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
GNOME Display Manager (gdm) 3.4.1 and earlier, when disable-user-list is set to true, allows local users to cause a denial of service (unable to login) by pressing the cancel button after entering a user name.
Mitigation
Install update from vendor's website.
Vulnerable software versions
GNOME Display Manager: 3.0.0 - 3.4.0.1
External links
http://www.openwall.com/lists/oss-security/2014/01/07/10
http://www.openwall.com/lists/oss-security/2014/01/07/16
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683338
http://bugzilla.gnome.org/show_bug.cgi?id=704284
http://bugzilla.redhat.com/show_bug.cgi?id=1050745
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.