Ubuntu 14.04 LTS : linux vulnerabilities (USN-3381-1) (Stack Clash)

Ubuntu Security Notice (C) 2017 Canonical, Inc. / NASL script (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Peter Pi discovered that the colormap handling for frame buffer
devices in the Linux kernel contained an integer overflow. A local
attacker could use this to disclose sensitive information (kernel
memory). (CVE-2016-8405)

It was discovered that the Linux kernel did not properly restrict
RLIMIT_STACK size. A local attacker could use this in conjunction with
another vulnerability to possibly execute arbitrary code.
(CVE-2017-1000365)

It was discovered that SELinux in the Linux kernel did not properly
handle empty writes to /proc/pid/attr. A local attacker could use this
to cause a denial of service (system crash). (CVE-2017-2618)

Shi Lei discovered that the RxRPC Kerberos 5 ticket handling code in
the Linux kernel did not properly verify metadata. A remote attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2017-7482).

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 packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:F/RL:U/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 102261 ()

Bugtraq ID:

CVE ID: CVE-2016-8405
CVE-2017-1000365
CVE-2017-2618
CVE-2017-7482

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