CVE-2015-7496
First published: Wed Nov 18 2015(Updated: )
GNOME Display Manager (gdm) before 3.18.2 allows physically proximate attackers to bypass the lock screen by holding the Escape key.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/gdm | <3.19.2 | 3.19.2 |
| Fedora | =23 | |
| GNOME Display Manager | <=3.18.0 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172328.html
- http://www.openwall.com/lists/oss-security/2015/11/17/10
- http://www.openwall.com/lists/oss-security/2015/11/17/8
- https://access.redhat.com/errata/RHSA-2017:2128
- https://bugzilla.gnome.org/show_bug.cgi?id=758032
- https://download.gnome.org/sources/gdm/3.18/gdm-3.18.2.news
- https://git.gnome.org/browse/gdm/commit/?id=5ac2246
- https://git.gnome.org/browse/gdm/commit/?id=05e5fc2
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1283281
- https://bugzilla.redhat.com/show_bug.cgi?id=1283279
Frequently Asked Questions
What is the severity of CVE-2015-7496?
CVE-2015-7496 has been classified as a medium severity vulnerability due to the potential for local bypass of security controls.
How do I fix CVE-2015-7496?
To fix CVE-2015-7496, upgrade GNOME Display Manager to version 3.19.2 or later.
Which systems are affected by CVE-2015-7496?
CVE-2015-7496 affects GNOME Display Manager versions prior to 3.19.2 and specific versions of Fedora 23.
What type of attack does CVE-2015-7496 allow?
CVE-2015-7496 allows physically proximate attackers to bypass the lock screen protection.
What happens when CVE-2015-7496 is exploited?
Exploitation of CVE-2015-7496 leads to a crash of the GNOME Display Manager resulting in a segmentation fault.
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