CVE-2023-23625

Denial of service in HAMT Decoding in go-unixfs

Description

go-unixfs is an implementation of a unix-like filesystem on top of an ipld merkledag. 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 to version 0.4.3 to resolve this issue. Users unable to upgrade should not feed untrusted user data to the decoding functions.

References

Link	Tags
https://github.com/ipfs/go-unixfs/security/advisories/GHSA-q264-w97q-q778	vendor advisory
https://github.com/ipfs/go-unixfs/commit/467d139a640ecee4f2e74643dafcc58bb3b54175	patch

Frequently Asked Questions

What is the severity of CVE-2023-23625?: CVE-2023-23625 has been scored as a medium severity vulnerability.
How to fix CVE-2023-23625?: To fix CVE-2023-23625, 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-2023-23625 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-23625 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-2023-23625?: CVE-2023-23625 affects ipfs go-unixfs.

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Description

Category

CWE-400 – Uncontrolled Resource Consumption

References

Frequently Asked Questions