Medium: kernel

Issue Overview:

The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163. (CVE-2019-19767)

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-4.14.158-129.185.amzn2.aarch64  
    kernel-headers-4.14.158-129.185.amzn2.aarch64  
    kernel-debuginfo-common-aarch64-4.14.158-129.185.amzn2.aarch64  
    perf-4.14.158-129.185.amzn2.aarch64  
    perf-debuginfo-4.14.158-129.185.amzn2.aarch64  
    python-perf-4.14.158-129.185.amzn2.aarch64  
    python-perf-debuginfo-4.14.158-129.185.amzn2.aarch64  
    kernel-tools-4.14.158-129.185.amzn2.aarch64  
    kernel-tools-devel-4.14.158-129.185.amzn2.aarch64  
    kernel-tools-debuginfo-4.14.158-129.185.amzn2.aarch64  
    kernel-devel-4.14.158-129.185.amzn2.aarch64  
    kernel-debuginfo-4.14.158-129.185.amzn2.aarch64  
  
i686:  
    kernel-headers-4.14.158-129.185.amzn2.i686  
  
src:  
    kernel-4.14.158-129.185.amzn2.src  
  
x86_64:  
    kernel-4.14.158-129.185.amzn2.x86_64  
    kernel-headers-4.14.158-129.185.amzn2.x86_64  
    kernel-debuginfo-common-x86_64-4.14.158-129.185.amzn2.x86_64  
    perf-4.14.158-129.185.amzn2.x86_64  
    perf-debuginfo-4.14.158-129.185.amzn2.x86_64  
    python-perf-4.14.158-129.185.amzn2.x86_64  
    python-perf-debuginfo-4.14.158-129.185.amzn2.x86_64  
    kernel-tools-4.14.158-129.185.amzn2.x86_64  
    kernel-tools-devel-4.14.158-129.185.amzn2.x86_64  
    kernel-tools-debuginfo-4.14.158-129.185.amzn2.x86_64  
    kernel-devel-4.14.158-129.185.amzn2.x86_64  
    kernel-debuginfo-4.14.158-129.185.amzn2.x86_64  

Additional References

Red Hat: CVE-2019-19767

Mitre: CVE-2019-19767