Cosign vulnerable to machine-wide denial of service via malicious artifacts

Cosign provides code signing and transparency for containers and binaries. Prior to version 2.2.4, maliciously-crafted software artifacts can cause denial of service of the machine running Cosign thereby impacting all services on the machine. The root cause is that Cosign creates slices based on the number of signatures, manifests or attestations in untrusted artifacts. As such, the untrusted artifact can control the amount of memory that Cosign allocates. The exact issue is Cosign allocates excessive memory on the lines that creates a slice of the same length as the manifests. Version 2.2.4 contains a patch for the vulnerability.

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H

不加限制或调节的资源分配

cosign 安全漏洞

cosign是美国的一个 OCI 注册表中的容器签名、验证和存储。 cosign 2.2.4之前版本存在安全漏洞，该漏洞源于恶意制作的软件工件可能会导致运行Cosign的计算机拒绝服务。

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