CVE-2024-29903

Medium

Description

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.

SeverityMedium
CVSS4.2
Exploit probability—
ProductSigstore Cosign
PublishedApr 10, 2024
First seenApr 10, 2024

How to fix

Update
  • sigstore cosign2.2.4 or later
  • github.com/sigstore/cosign/v22.2.4 or later

Affected products

ProductAffected versionsFixed in
sigstore cosignv < 2.2.42.2.4
github.com/sigstore/cosignGov ≤ 2.2.3, No range specified—
github.com/sigstore/cosign/v2Gov < 2.2.42.2.4

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CVE-2024-29903 · Sigstore Cosign · Dark Radar