ALAS-2019-1232


Amazon Linux AMI Security Advisory: ALAS-2019-1232
Advisory Release Date: 2019-07-25 18:31 Pacific
Severity: Important
References: CVE-2019-3900 

Issue Overview:

An infinite loop issue was found in the vhost_net kernel module while handling incoming packets in handle_rx(). The infinite loop could occur if one end sends packets faster than the other end can process them. A guest user, maybe a remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.(CVE-2019-3900 )


Affected Packages:

kernel


Issue Correction:
Run yum update kernel to update your system.

New Packages:
i686:
    perf-4.14.133-88.105.amzn1.i686
    kernel-debuginfo-4.14.133-88.105.amzn1.i686
    kernel-tools-debuginfo-4.14.133-88.105.amzn1.i686
    kernel-tools-4.14.133-88.105.amzn1.i686
    perf-debuginfo-4.14.133-88.105.amzn1.i686
    kernel-headers-4.14.133-88.105.amzn1.i686
    kernel-debuginfo-common-i686-4.14.133-88.105.amzn1.i686
    kernel-4.14.133-88.105.amzn1.i686
    kernel-devel-4.14.133-88.105.amzn1.i686
    kernel-tools-devel-4.14.133-88.105.amzn1.i686

src:
    kernel-4.14.133-88.105.amzn1.src

x86_64:
    kernel-headers-4.14.133-88.105.amzn1.x86_64
    kernel-devel-4.14.133-88.105.amzn1.x86_64
    perf-4.14.133-88.105.amzn1.x86_64
    perf-debuginfo-4.14.133-88.105.amzn1.x86_64
    kernel-debuginfo-4.14.133-88.105.amzn1.x86_64
    kernel-tools-devel-4.14.133-88.105.amzn1.x86_64
    kernel-4.14.133-88.105.amzn1.x86_64
    kernel-tools-4.14.133-88.105.amzn1.x86_64
    kernel-tools-debuginfo-4.14.133-88.105.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.133-88.105.amzn1.x86_64