Fedora 27: 2018-22d5fa8a90 Critical: KPTI Mitigation for Meltdown

The kernel meta package

The 4.14.11 stable kernel update contains a number of important fixes across the

tree. This also includes the KPTI patches to mitigate the Meltdown vulnerability

for x86 architectures.

[ 1 ] Bug #1530274 - CVE-2017-17857 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging mishandling of invalid variable stack read operations

https://bugzilla.redhat.com/show_bug.cgi?id=1530274

[ 2 ] Bug #1530273 - CVE-2017-17856 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging the lack of stack-pointer alignment enforcement

https://bugzilla.redhat.com/show_bug.cgi?id=1530273

[ 3 ] Bug #1530272 - CVE-2017-17855 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging improper use of pointers in place of scalars

https://bugzilla.redhat.com/show_bug.cgi?id=1530272

[ 4 ] Bug #1530271 - CVE-2017-17854 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging unrestricted integer values for pointer arithmetic

https://bugzilla.redhat.com/show_bug.cgi?id=1530271

[ 5 ] Bug #1530270 - CVE-2017-17853 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging incorrect BPF_RSH signed bounds calculations

https://bugzilla.redhat.com/show_bug.cgi?id=1530270

[ 6 ] Bug #1530269 - CVE-2017-17852 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging mishandling of 32-bit ALU ops

https://bugzilla.redhat.com/show_bug.cgi?id=1530269

[ 7 ] Bug #1529124 - CVE-2017-17862 kernel: Improper logic pruning in bpf/verifier.c

https://bugzilla.redhat.com/show_bug.cgi?id=1529124

[ 8 ] Bug #1529123 - CVE-2017-17863 kernel: integer overflow in static int check_alu_op function in bpf/verifier.c

https://bugzilla.redhat.com/show_bug.cgi?id=1529123

[ 9 ] Bug #1529120 - CVE-2017-17864 kernel: information disclosure via pointer leak in kernel/bpf/verifier.c

https://bugzilla.redhat.com/show_bug.cgi?id=1529120

su -c 'dnf upgrade kernel' at the command line.

For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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