Vulnerabilities in pkg:golang/github.com/ipfs/go-unixfs

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Advisory Identifier: GHSA-q264-w97q-q778
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Advisory Summary

CVE-2023-23625 is a MODERATE (CVSS 5.9) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Github.com/ipfs/go unixfs libraries in the Go ecosystem. The issue involves denial of service via hamt decoding panics. Remediation is available by upgrading affected packages to version 0.4.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/ipfs/go-unixfs

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/github.com/ipfs/go-unixfs. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-q264-w97q-q778 CVE-2023-23625 MODERATE Denial of service via HAMT Decoding Panics

CVE-2023-23625 at a Glance

CVE Identifier CVE-2023-23625
GHSA Identifier GHSA-q264-w97q-q778
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Github.com/ipfs/go unixfs
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2023-23625

To remediate this vulnerability, upgrade all affected Github.com/ipfs/go unixfs dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/ipfs/go-unixfs fixed: 0.4.3 
Upgrade github.com/ipfs/go-unixfs to 0.4.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/ipfs/go-unixfs

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-23625, inspect your project dependencies for Github.com/ipfs/go unixfs:

inspect dependencies for github.com/ipfs/go-unixfs

Analyze the terminal output to locate any version of Github.com/ipfs/go unixfs in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.4.3), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Github.com/ipfs/go unixfs, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact 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. This include checks returned in [ipfs/go-bitfield GHSA-2h6c-j3gf-xp9r](https://github.com/ipfs/go-bitfield/security/advisories/GHSA-2h6c-j3gf-xp9r), as well as limiting the `fanout` to `<= 1024` (to avoid attempts of arbitrary sized allocations). ### Patches - https://github.com/ipfs/go-unixfs/commit/dbcc43ec3e2db0d01e8d80c55040bba3cf22cb4b ### Workarounds Do not feed untrusted user data to the decoding functions. ### References - https://github.com/ipfs/go-bitfield/security/advisories/GHSA-2h6c-j3gf-xp9r

CVE-2023-23625 Affected Github.com/ipfs/go unixfs Versions

1 component(s)
Fixed Versions:
0.4.3
Product / Package Ecosystem Affected Versions Fixed Version
github.com/ipfs/go-unixfs
golang/github.com/ipfs/go-unixfs
Go
< 0.4.3
0.4.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/ipfs/go-unixfs/security/advisories/GHSA-q264-w97q-q778
NVD — CVE-2023-23625 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23625
Security Fix Commit FIX COMMIT
https://github.com/ipfs/go-unixfs/commit/467d139a640ecee4f2e74643dafcc58bb3b54175
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-q264-w97q-q778
Github.com/ipfs/go unixfs Source Repository REPOSITORY
https://github.com/ipfs/go-unixfs
pkg.go.dev/vuln/go-2023-1557 WEB
https://pkg.go.dev/vuln/GO-2023-1557

Frequently Asked Questions

What is CVE-2023-23625?
CVE-2023-23625 is a security vulnerability in Github.com/ipfs/go unixfs involving Denial of service via HAMT Decoding Panics under CWE-400: Uncontrolled Resource Consumption.
Which Github.com/ipfs/go unixfs versions are affected?
Affected versions include releases prior to 0.4.3 across affected packages: github.com/ipfs/go-unixfs.
What version fixes CVE-2023-23625?
Upgrading to 0.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/ipfs/go-unixfs affected?
Yes, github.com/ipfs/go-unixfs is affected in releases prior to 0.4.3. Upgrade your dependency to 0.4.3 or later.
What is the CVSS score of CVE-2023-23625?
CVE-2023-23625 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2023-23625?
CVE-2023-23625 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Go dependencies for CVE-2023-23625?
Run the dependency tree command: 'inspect dependencies for github.com/ipfs/go-unixfs'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q264-w97q-q778",
  "modified" : "2024-05-20T21:43:31Z",
  "published" : "2023-02-10T23:08:06Z",
  "aliases" : [ "CVE-2023-23625" ],
  "summary" : "Denial of service via HAMT Decoding Panics",
  "details" : "### Impact\nTrying to read malformed HAMT sharded directories can cause panics and virtual memory leaks.\nIf you are reading untrusted user input, an attacker can then trigger a panic.\n\nThis is caused by bogus `fanout` parameter in the HAMT directory nodes.\nThis include checks returned in [ipfs/go-bitfield GHSA-2h6c-j3gf-xp9r](https://github.com/ipfs/go-bitfield/security/advisories/GHSA-2h6c-j3gf-xp9r), as well as limiting the `fanout` to `<= 1024` (to avoid attempts of arbitrary sized allocations).\n\n### Patches\n- https://github.com/ipfs/go-unixfs/commit/dbcc43ec3e2db0d01e8d80c55040bba3cf22cb4b\n\n### Workarounds\nDo not feed untrusted user data to the decoding functions.\n\n### References\n- https://github.com/ipfs/go-bitfield/security/advisories/GHSA-2h6c-j3gf-xp9r\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/ipfs/go-unixfs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ipfs/go-unixfs/security/advisories/GHSA-q264-w97q-q778"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-23625"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ipfs/go-unixfs/commit/467d139a640ecee4f2e74643dafcc58bb3b54175"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-q264-w97q-q778"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ipfs/go-unixfs"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2023-1557"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-02-10T23:08:06Z",
    "nvd_published_at" : "2023-02-09T21:15:00Z"
  }
}