Ubuntu 16.04 LTS : ubuntu-core-launcher vulnerability (USN-2956-1)

Ubuntu Security Notice (C) 2016 Canonical, Inc. / NASL script (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Zygmunt Krynicki discovered that ubuntu-core-launcher did not properly
sanitize its input and contained a logic error when determining the
mount point of bind mounts when using snaps on Ubuntu classic systems
(eg, traditional desktop and server). If a user were tricked into
installing a malicious snap with a crafted snap name, an attacker
could perform a delayed attack to steal data or execute code within
the security context of another snap. This issue did not affect Ubuntu
Core systems.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected ubuntu-core-launcher package.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 90827 ()

Bugtraq ID:

CVE ID: CVE-2016-1580

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