Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)

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 :

It was discovered that the keyring implementation in the Linux kernel
in some situations did not prevent special internal keyrings from
being joined by userspace keyrings. A privileged local attacker could
use this to bypass module verification. (CVE-2016-9604)

It was discovered that a buffer overflow existed in the trace
subsystem in the Linux kernel. A privileged local attacker could use
this to execute arbitrary code. (CVE-2017-0605)

Daniel Jiang discovered that a race condition existed in the ipv4 ping
socket implementation in the Linux kernel. A local privileged attacker
could use this to cause a denial of service (system crash).
(CVE-2017-2671)

JongHwan Kim discovered an out-of-bounds read in the TCP stack of the
Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or leak sensitive information. (CVE-2017-7277)

Eric Biggers discovered a memory leak in the keyring implementation in
the Linux kernel. A local attacker could use this to cause a denial of
service (memory consumption). (CVE-2017-7472)

Sabrina Dubroca discovered that the asynchronous cryptographic hash
(ahash) implementation in the Linux kernel did not properly handle a
full request queue. A local attacker could use this to cause a denial
of service (infinite recursion). (CVE-2017-7618)

Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3
server implementations in the Linux kernel did not properly handle
certain long RPC replies. A remote attacker could use this to cause a
denial of service (system crash). (CVE-2017-7645)

Tommi Rantala and Brad Spengler discovered that the memory manager in
the Linux kernel did not properly enforce the CONFIG_STRICT_DEVMEM
protection mechanism. A local attacker with access to /dev/mem could
use this to expose sensitive information or possibly execute arbitrary
code. (CVE-2017-7889)

Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3
server implementations in the Linux kernel did not properly check for
the end of buffer. A remote attacker could use this to craft requests
that cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-7895)

Fabian Grunbichler discovered that the Packet action API
implementation in the Linux kernel improperly handled uninitialized
data. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2017-7979)

It was discovered that the Conexant USB driver in the Linux kernel
improperly handled memory in some configurations. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2017-8063)

It was discovered that the DVD USB framework in the Linux kernel
improperly handled memory in some configurations. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2017-8064)

It was discovered that the virtio console driver in the Linux kernel
improperly handled memory. A local attacker could use this to cause a
denial of service (system crash). (CVE-2017-8067).

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 :

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

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