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.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-0769 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.
Github GHSA Github GHSA GHSA-q264-w97q-q778 Denial of service via HAMT Decoding Panics
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 10 Mar 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-03-10T21:13:58.723Z

Reserved: 2023-01-16T17:07:46.244Z

Link: CVE-2023-23625

cve-icon Vulnrichment

Updated: 2024-08-02T10:35:33.626Z

cve-icon NVD

Status : Modified

Published: 2023-02-09T21:15:11.327

Modified: 2024-11-21T07:46:33.710

Link: CVE-2023-23625

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.