Packages
- containerd - daemon to control runC
Details
It was discovered that containerd insufficiently restricted permissions on
container root and plugin directories. If a user or automated system were
tricked into launching a specially crafted container image, a remote
attacker could traverse directory contents and modify files and execute
programs on the host filesystem, possibly leading to privilege escalation.
It was discovered that containerd insufficiently restricted permissions on
container root and plugin directories. If a user or automated system were
tricked into launching a specially crafted container image, a remote
attacker could traverse directory contents and modify files and execute
programs on the host filesystem, possibly leading to privilege escalation.
Update instructions
After a standard system update you need to restart containerd to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 21.04 hirsute | containerd – 1.5.2-0ubuntu1~21.04.3 | ||
| 20.04 focal | containerd – 1.5.2-0ubuntu1~20.04.3 | ||
| 18.04 bionic | containerd – 1.5.2-0ubuntu1~18.04.3 | ||
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