| id: GO-2022-1165 |
| modules: |
| - module: helm.sh/helm/v3 |
| versions: |
| - fixed: 3.10.3 |
| vulnerable_at: 3.10.2 |
| packages: |
| - package: helm.sh/helm/v3/pkg/repo |
| symbols: |
| - IndexFile.MustAdd |
| - loadIndex |
| - File.Remove |
| derived_symbols: |
| - ChartRepository.DownloadIndexFile |
| - ChartRepository.Index |
| - ChartRepository.Load |
| - FindChartInAuthAndTLSAndPassRepoURL |
| - FindChartInAuthAndTLSRepoURL |
| - FindChartInAuthRepoURL |
| - FindChartInRepoURL |
| - IndexDirectory |
| - IndexFile.Add |
| - LoadIndexFile |
| summary: Denial of service via repository index file in helm.sh/helm/v3 |
| description: |- |
| Applications that use the repo package in the Helm SDK to parse an index file |
| can suffer a Denial of Service when that input causes a panic that cannot be |
| recovered from. |
| |
| The repo package contains a handler that processes the index file of a |
| repository. For example, the Helm client adds references to chart repositories |
| where charts are managed. The repo package parses the index file of the |
| repository and loads it into memory. Some index files can cause array data |
| structures to be created causing a memory violation. |
| |
| The Helm Client will panic with an index file that causes a memory violation |
| panic. Helm is not a long running service so the panic will not affect future |
| uses of the Helm client. |
| cves: |
| - CVE-2022-23525 |
| ghsas: |
| - GHSA-53c4-hhmh-vw5q |
| credits: |
| - Ada Logics, in a fuzzing audit sponsored by CNCF |
| references: |
| - advisory: https://github.com/helm/helm/security/advisories/GHSA-53c4-hhmh-vw5q |
| - fix: https://github.com/helm/helm/commit/638ebffbc2e445156f3978f02fd83d9af1e56f5b |
