ALAS2-2019-1145

Amazon Linux 2 Security Advisory: ALAS-2019-1145
Advisory Release Date: 2019-01-07 22:25 Pacific
Advisory Updated Date: 2019-01-09 01:12 Pacific
Severity: Medium
Issue Overview:

The USB subsystem mishandles size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.(CVE-2018-20169)

A flaw was found where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect() and close() function may allow an attacker using the AF_VSOCK protocol to gather a 4 byte information leak or possibly impersonate AF_VSOCK messages destined to other clients or leak kernel memory.(CVE-2018-14625)


Affected Packages:

kernel


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


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

New Packages:
aarch64:
    kernel-4.14.88-88.76.amzn2.aarch64
    kernel-headers-4.14.88-88.76.amzn2.aarch64
    kernel-debuginfo-common-aarch64-4.14.88-88.76.amzn2.aarch64
    perf-4.14.88-88.76.amzn2.aarch64
    perf-debuginfo-4.14.88-88.76.amzn2.aarch64
    python-perf-4.14.88-88.76.amzn2.aarch64
    python-perf-debuginfo-4.14.88-88.76.amzn2.aarch64
    kernel-tools-4.14.88-88.76.amzn2.aarch64
    kernel-tools-devel-4.14.88-88.76.amzn2.aarch64
    kernel-tools-debuginfo-4.14.88-88.76.amzn2.aarch64
    kernel-devel-4.14.88-88.76.amzn2.aarch64
    kernel-debuginfo-4.14.88-88.76.amzn2.aarch64

i686:
    kernel-headers-4.14.88-88.76.amzn2.i686

src:
    kernel-4.14.88-88.76.amzn2.src

x86_64:
    kernel-4.14.88-88.76.amzn2.x86_64
    kernel-headers-4.14.88-88.76.amzn2.x86_64
    kernel-debuginfo-common-x86_64-4.14.88-88.76.amzn2.x86_64
    perf-4.14.88-88.76.amzn2.x86_64
    perf-debuginfo-4.14.88-88.76.amzn2.x86_64
    python-perf-4.14.88-88.76.amzn2.x86_64
    python-perf-debuginfo-4.14.88-88.76.amzn2.x86_64
    kernel-tools-4.14.88-88.76.amzn2.x86_64
    kernel-tools-devel-4.14.88-88.76.amzn2.x86_64
    kernel-tools-debuginfo-4.14.88-88.76.amzn2.x86_64
    kernel-devel-4.14.88-88.76.amzn2.x86_64
    kernel-debuginfo-4.14.88-88.76.amzn2.x86_64

Additional References

Red Hat: CVE-2018-14625, CVE-2018-20169

Mitre: CVE-2018-14625, CVE-2018-20169