CVE-2023-23631

HAMT Decoding Panics in github.com/ipfs/go-unixfsnode

CVSS 5.9 MEDIUMEPSS 0.9%CWE-400

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.9EPSS 0.9%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Feb 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

github.com/ipfs/go-unixfsnode is an ADL IPLD prime node that wraps go-codec-dagpb's implementation of protobuf to enable pathing. In versions priot to 1.5.2 trying to read malformed HAMT sharded directories can cause panics and virtual memory leaks. If you are reading untrusted user input, an attacker can then trigger a panic. This is caused by bogus fanout parameter in the HAMT directory nodes. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

ipfs · go-unixfsnode

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References

https://github.com/ipfs/go-unixfsnode/commit/59050ea8bc458ae55246ae09243e6e165923e076 https://github.com/ipfs/go-unixfsnode/commit/91b3d39d33ef0cd2aff2c95d50b2329350944b68 https://github.com/ipfs/go-unixfsnode/commit/a4ed723727e0bdc2277158337c2fc0d82802d122 https://github.com/ipfs/go-unixfsnode/security/advisories/GHSA-4gj3-6r43-3wfc