CVSS: 6.2EPSS: 0%CPEs: 3EXPL: 0CVE-2023-27484 – Unchecked fieldpath index in Composition's patches can lead to arbitrary memory allocation in crossplane
https://notcve.org/view.php?id=CVE-2023-27484
crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. In affected versions an already highly privileged user able to create or update Compositions can specify an arbitrarily high index in a patch's `ToFieldPath`, which could lead to excessive memory usage once such Composition is selected for a Composite resource. Compositions allow users to specify patches inserting elements into arrays at an arbitrary index. When a Composition is selected for a Composite Resource, patches are evaluated and if a specified index is greater than the current size of the target slice, Crossplane will grow that slice up to the specified index, which could lead to an excessive amount of memory usage and therefore the Pod being OOM-Killed. The index is already capped to the maximum value for a uint32 (4294967295) when parsed, but that is still an unnecessarily large value. • https://github.com/crossplane/crossplane/security/advisories/GHSA-v829-x6hh-cqfq • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2023-27483 – fieldpath's Paved.SetValue allows growing arrays up to arbitrary sizes in crossplane-runtime
https://notcve.org/view.php?id=CVE-2023-27483
crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. An out of memory panic vulnerability has been discovered in affected versions. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic. In the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index, the index is currently capped at max uint32 (4294967295) given how indexes are parsed, but that is still an unnecessarily large value. • https://github.com/crossplane/crossplane-runtime/commit/53508a9f4374604db140dd8ab2fa52276441e738 https://github.com/crossplane/crossplane-runtime/security/advisories/GHSA-vfvj-3m3g-m532 • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption •