CVE - CVE-2025-47270

CVE-ID
CVE-2025-47270	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. The `nimiq-network-libp2p` subcrate of nimiq/core-rs-albatross is vulnerable to a Denial of Service (DoS) attack due to uncontrolled memory allocation. Specifically, the implementation of the `Discovery` network message handling allocates a buffer based on a length value provided by the peer, without enforcing an upper bound. Since this length is a `u32`, a peer can trigger allocations of up to 4 GB, potentially leading to memory exhaustion and node crashes. As Discovery messages are regularly exchanged for peer discovery, this vulnerability can be exploited repeatedly. The patch for this vulnerability is formally released as part of v1.1.0. The patch implements a limit to the discovery message size of 1 MB and also resizes the message buffer size incrementally as the data is read. No known workarounds are available.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/nimiq/core-rs-albatross/pull/3384 URL:https://github.com/nimiq/core-rs-albatross/pull/3384 MISC:https://github.com/nimiq/core-rs-albatross/releases/tag/v1.1.0 URL:https://github.com/nimiq/core-rs-albatross/releases/tag/v1.1.0 MISC:https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3v6r-9cr8-q433 URL:https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3v6r-9cr8-q433
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20250505	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250505)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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