| Description: | Summary:
The remote host is missing an update for the 'containerd' package(s) announced via the USN-5521-1 advisory.
Vulnerability Insight:
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 file system, possibly leading to privilege escalation.
(CVE-2021-41103)
It was discovered that containerd incorrectly handled file permission
changes. If a user or automated system were tricked into launching a
specially crafted container image, a remote attacker could change
permissions on files on the host file system and possibly escalate
privileges. (CVE-2021-32760)
It was discovered that containerd allows attackers to gain access to read-
only copies of arbitrary files and directories on the host via a specially-
crafted image configuration. An attacker could possibly use this issue to
obtain sensitive information. (CVE-2022-23648)
It was discovered that containerd incorrectly handled certain memory
operations. A remote attacker could use this to cause a denial of service.
(CVE-2022-31030)
Affected Software/OS:
'containerd' package(s) on Ubuntu 16.04.
Solution:
Please install the updated package(s).
CVSS Score:
7.2
CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
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