ALAS-2018-1046


Amazon Linux AMI Security Advisory: ALAS-2018-1046
Advisory Release Date: 2018-07-24 21:06 Pacific
Severity: Medium
References: CVE-2018-11412 

Issue Overview:

The fs/ext4/inline.c:ext4_read_inline_data() function in the Linux kernel performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode. The unbound copy can cause memory corruption or possible privilege escalation. (CVE-2018-11412 )


Affected Packages:

kernel


Issue Correction:
Run yum update kernel and reboot the instance to update your system.

New Packages:
i686:
    kernel-headers-4.14.55-62.37.amzn1.i686
    kernel-tools-debuginfo-4.14.55-62.37.amzn1.i686
    kernel-tools-4.14.55-62.37.amzn1.i686
    kernel-debuginfo-common-i686-4.14.55-62.37.amzn1.i686
    kernel-devel-4.14.55-62.37.amzn1.i686
    perf-debuginfo-4.14.55-62.37.amzn1.i686
    kernel-tools-devel-4.14.55-62.37.amzn1.i686
    perf-4.14.55-62.37.amzn1.i686
    kernel-debuginfo-4.14.55-62.37.amzn1.i686
    kernel-4.14.55-62.37.amzn1.i686

src:
    kernel-4.14.55-62.37.amzn1.src

x86_64:
    kernel-4.14.55-62.37.amzn1.x86_64
    kernel-debuginfo-4.14.55-62.37.amzn1.x86_64
    kernel-tools-devel-4.14.55-62.37.amzn1.x86_64
    kernel-devel-4.14.55-62.37.amzn1.x86_64
    kernel-tools-4.14.55-62.37.amzn1.x86_64
    perf-debuginfo-4.14.55-62.37.amzn1.x86_64
    kernel-tools-debuginfo-4.14.55-62.37.amzn1.x86_64
    perf-4.14.55-62.37.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.55-62.37.amzn1.x86_64
    kernel-headers-4.14.55-62.37.amzn1.x86_64