CVE-2023-23631

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

Description

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.38%
Vendor Advisory github.com
Affected: ipfs go-unixfsnode
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2023-23631?
CVE-2023-23631 has been scored as a medium severity vulnerability.
How to fix CVE-2023-23631?
To fix CVE-2023-23631, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-23631 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-23631 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-23631?
CVE-2023-23631 affects ipfs go-unixfsnode.
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