[Ksplice][Debian 9.0 Updates] New Ksplice updates for Debian 9.0 Stretch (DSA-4465)

[Oracle Ksplice]

Synopsis: DSA-4465 can now be patched using Ksplice
CVEs: CVE-2019-10126 CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 CVE-2019-11486 CVE-2019-11815 CVE-2019-11833 CVE-2019-11884 CVE-2019-3846 CVE-2019-5489 CVE-2019-9500 CVE-2019-9503

Systems running Debian 9.0 Stretch can now use Ksplice to patch
against the latest Debian Security Advisory, DSA-4465.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Debian 9.0
Stretch install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* CVE-2019-5489: Information leak in the mincore() syscall implementation.

Missing checks in the mincore() syscall could let a local attacker
observes page cache access patterns on other process in the system and
lead to an information leak.


* CVE-2019-9500: Potential heap overflow in Broadcom FullMAC WLAN driver.

A missing length check in the brcmfmac driver can lead to a buffer
overflow on the heap.  This could cause a system to exhibit unexpected
behavior, and could potentially lead to a denial-of-service.


* CVE-2019-9503: Denial-of-service when receiving firmware event frames over a Broadcom WLAN USB dongle.

A failure to validate firmware event frames received over a Broadcom
WLAN USB dongle could let a remote attacker cause a denial-of-service.


* CVE-2019-11486: Denial-of-service in Siemens R3964 line discipline drivers.

Multiple race conditions in the r3964 line discipline driver could lead to
various conditions that could be exploited to cause a denial-of-service.


* CVE-2019-11815: Use-after-free in RDS socket creation.

A logic error in the RDS code could fail to properly clean up a socket once
it is destroyed, which could then lead to a use-after-free on a new socket
creation.  This could be used to cause a denial-of-service.


* CVE-2019-11833: Information leak in ext4 extent tree block.

A missing zeroing of uninitialized memory in ext4 extent tree block
could lead to an information leak. A local attacker could use this flaw
to leak information about running kernel and facilitate an attack.


* CVE-2019-11884: Information leak in Bluetooth HIDP HIDPCONNADD ioctl().

Missing string termination in the Bluetooth HIDP HIDPCONNADD ioctl()
could result in leaking the contents of the kernel stack to a local
user.


* CVE-2019-3846: Heap overflow when parsing BSS descriptor in Marvell WiFi-Ex driver.

A missing check on user input when parsing BSS descriptor in Marvell
WiFi-Ex driver could let a local attacker cause a heap overflow and a
denial-of-service.


* CVE-2019-10126: Heap overflow when parsing IEs in Marvell WiFi-Ex driver.

A missing check when parsing IEs in Marvell WiFi-Ex driver could lead to
a heap overflow. A local attacker could use this flaw to cause a
denial-of-service.


* CVE-2019-11477, CVE-2019-11478, CVE-2019-11479: Remote Denial-of-service in TCP stack.

A number of errors in the TCP stack could result in a remotely
triggerable denial of service on links with a small Maximum Segment Size
(MSS).  A remote user could use a maliciously crafted TCP stream to
either panic the system or exhaust resources.

A new sysctl, ksplice_net_ipv4.tcp_min_snd_mss can be used to to adjust
the minimum Maximum Segment Size and defaults to 48 bytes.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.