| id: GO-2023-2000 |
| modules: |
| - module: github.com/libp2p/go-libp2p |
| versions: |
| - fixed: 0.27.8 |
| - introduced: 0.28.0 |
| fixed: 0.28.2 |
| - introduced: 0.29.0 |
| fixed: 0.29.1 |
| vulnerable_at: 0.29.0 |
| packages: |
| - package: github.com/libp2p/go-libp2p/core/crypto |
| symbols: |
| - GenerateRSAKeyPair |
| - UnmarshalRsaPrivateKey |
| - UnmarshalRsaPublicKey |
| derived_symbols: |
| - GenerateKeyPair |
| - GenerateKeyPairWithReader |
| - PublicKeyFromProto |
| - UnmarshalPrivateKey |
| - UnmarshalPublicKey |
| summary: Large RSA keys can cause high resource usage in github.com/libp2p/go-libp2p |
| description: |- |
| Large RSA keys can lead to resource exhaustion attacks. |
| |
| With fix, the size of RSA keys transmitted during handshakes is restricted to <= |
| 8192 bits. |
| cves: |
| - CVE-2023-39533 |
| ghsas: |
| - GHSA-876p-8259-xjgg |
| references: |
| - advisory: https://github.com/libp2p/go-libp2p/security/advisories/GHSA-876p-8259-xjgg |
| - report: https://go.dev/issue/61460 |
| - fix: https://github.com/libp2p/go-libp2p/commit/0cce607219f3710addc7e18672cffd1f1d912fbb |
