CVE-2022-24778

描述

The imgcrypt library provides API extensions for containerd to support encrypted container images and implements the ctd-decoder command line tool for use by containerd to decrypt encrypted container images. The imgcrypt function CheckAuthorization is supposed to check whether the current used is authorized to access an encrypted image and prevent the user from running an image that another user previously decrypted on the same system. In versions prior to 1.1.4, a failure occurs when an image with a ManifestList is used and the architecture of the local host is not the first one in the ManifestList. Only the first architecture in the list was tested, which may not have its layers available locally since it could not be run on the host architecture. Therefore, the verdict on unavailable layers was that the image could be run anticipating that image run failure would occur later due to the layers not being available. However, this verdict to allow the image to run enabled other architectures in the ManifestList to run an image without providing keys if that image had previously been decrypted. A patch has been applied to imgcrypt 1.1.4. Workarounds may include usage of different namespaces for each remote user.

如何修補 CVE-2022-24778

要修補 CVE-2022-24778,請將受影響套件升級到下列已修補版本。

• —升級至 1.1.4 或更新版本
• —升級至 1.1.4 或更新版本

CVE-2022-24778 正在被利用嗎?

低 — EPSS 為 1.1%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 1.1.4
• from 0, < 1.1.4