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Debian Security Advisory DSA 4270-1 (gdm3 - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

4.6

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

3 years ago

Summary

Chris Coulson discovered a use-after-free flaw in the GNOME Display Manager, triggerable by an unprivileged user via a specially crafted sequence of D-Bus method calls, leading to denial of service or potentially the execution of arbitrary code.

Affected Software

Affected Software

gdm3 on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the stable distribution (stretch), this problem has been fixed in version 3.22.3-3+deb9u2. We recommend that you upgrade your gdm3 packages. For the detailed security status of gdm3 please refer to its security tracker page linked in the references.

Common Vulnerabilities and Exposures (CVE)