ALAS-2021-1556

Related Vulnerabilities: CVE-2019-16884  

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory. (CVE-2019-16884)

ALAS-2021-1556


Amazon Linux AMI Security Advisory: ALAS-2021-1556
Advisory Release Date: 2021-12-28 23:55 Pacific
Advisory Updated Date: 2021-12-29 00:02 Pacific
Severity: Important
References: CVE-2019-16884 

Issue Overview:

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory. (CVE-2019-16884)


Affected Packages:

runc


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

New Packages:
src:
    runc-1.0.0-0.1.20200204.gitdc9208a.1.amzn1.src

x86_64:
    runc-1.0.0-0.1.20200204.gitdc9208a.1.amzn1.x86_64
    runc-debuginfo-1.0.0-0.1.20200204.gitdc9208a.1.amzn1.x86_64