[Ksplice][Ubuntu-16.04-Updates] New Ksplice updates for Ubuntu 16.04 Xenial (USN-4708-1)
Oracle Ksplice
ksplice-support_ww at oracle.com
Mon Feb 8 01:39:19 PST 2021
Synopsis: USN-4708-1 can now be patched using Ksplice
CVEs: CVE-2018-13093 CVE-2019-19813 CVE-2019-19816
Systems running Ubuntu 16.04 Xenial can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-4708-1.
INSTALLING THE UPDATES
We recommend that all users of Ksplice Uptrack running Ubuntu 16.04
Xenial 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-2018-13093: NULL-pointer dereference when reusing inodes in xfs.
If an XFS filesystem becomes corrupted, the local inode cache might
attempt to re-allocate in-use inodes. This can result in a deadlock or
NULL-pointer dereference and denial-of-service.
* CVE-2019-19813, CVE-2019-19816: Invalid memory accesses during btrfs filesystem sync.
A failure to properly validate certain metadata in a btrfs filesystem
image can lead to out-of-bounds writes and use-after-free issues. Using
a specially crafted btrfs image, a local attacker could potentially
exploit these flaws to escalate privilege or cause other unexpected
behavior, including a denial-of-service.
SUPPORT
Ksplice support is available at ksplice-support_ww at oracle.com.
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