CVE-2023-38669: Paddlepaddle Use After Free Vulnerability

HIGH
Advisory Identifier: GHSA-8wfh-qxxv-3q8c
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CVSS 8.3
CWE-416
Published
Advisory Summary

CVE-2023-38669 is a HIGH (CVSS 8.3) use after free vulnerability (CWE-416: Use After Free) affecting Paddlepaddle libraries in the PyPI ecosystem. The issue involves use after free in paddlepaddle. Remediation is available by upgrading affected packages to version 2.5.0.

CVE-2023-38669 at a Glance

CVE Identifier CVE-2023-38669
GHSA Identifier GHSA-8wfh-qxxv-3q8c
Severity HIGH
CVSS v3.1 Base Score 8.3
CWE Classification CWE-416: Use After Free
Affected Product Paddlepaddle
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.3

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:R/S:C/C:H/I:H/A:H).

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

How to Fix CVE-2023-38669

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

paddlepaddle fixed: 2.5.0 
pip install paddlepaddle>=2.5.0
Verify Direct and Transitive Dependencies

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

pip show paddlepaddle

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-38669, inspect your installed packages using pip:

pip show paddlepaddle

Analyze the terminal output to locate any version of Paddlepaddle in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.5.0), your application is affected.

Note: The pip show paddlepaddle command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. In Paddlepaddle, 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

Use after free in paddle.diagonal in PaddlePaddle before 2.5.0. This resulted in a potentially exploitable condition.

CVE-2023-38669 Affected Paddlepaddle Versions

1 component(s)
Fixed Versions:
2.5.0
Product / Package Ecosystem Affected Versions Fixed Version
paddlepaddle
pypi/paddlepaddle
PyPI
< 2.5.0
2.5.0

References

NVD — CVE-2023-38669 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-38669
Security Fix Commit FIX COMMIT
https://github.com/PaddlePaddle/Paddle/commit/43981874f5e1683b855eab871092fa9be58d6a44
Paddlepaddle Source Repository REPOSITORY
https://github.com/PaddlePaddle/Paddle
Paddlepaddle Source Repository REPOSITORY
https://github.com/PaddlePaddle/Paddle/blob/develop/security/advisory/pdsa-2023-001.md
Paddlepaddle Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/paddlepaddle/PYSEC-2023-122.yaml

Frequently Asked Questions

What is CVE-2023-38669?
CVE-2023-38669 is a security vulnerability in Paddlepaddle involving Use after free in PaddlePaddle under CWE-416: Use After Free.
Which Paddlepaddle versions are affected?
Affected versions include releases prior to 2.5.0 across affected packages: paddlepaddle.
What version fixes CVE-2023-38669?
Upgrading to 2.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is paddlepaddle affected?
Yes, paddlepaddle is affected in releases prior to 2.5.0. Upgrade your dependency to 2.5.0 or later.
What is the CVSS score of CVE-2023-38669?
CVE-2023-38669 has a CVSS v3.1 base score of 8.3 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2023-38669?
CVE-2023-38669 is classified under CWE-416: Use After Free (The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.).
How can I check PyPI dependencies for CVE-2023-38669?
Run the dependency tree command: 'pip show paddlepaddle'. 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-8wfh-qxxv-3q8c",
  "modified" : "2023-07-31T19:01:32Z",
  "published" : "2023-07-26T12:30:28Z",
  "aliases" : [ "CVE-2023-38669" ],
  "summary" : "Use after free in PaddlePaddle",
  "details" : "Use after free in paddle.diagonal in PaddlePaddle before 2.5.0. This resulted in a potentially exploitable condition.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "paddlepaddle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-38669"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PaddlePaddle/Paddle/commit/43981874f5e1683b855eab871092fa9be58d6a44"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PaddlePaddle/Paddle"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PaddlePaddle/Paddle/blob/develop/security/advisory/pdsa-2023-001.md"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/paddlepaddle/PYSEC-2023-122.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-416" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-26T22:30:22Z",
    "nvd_published_at" : "2023-07-26T10:15:11Z"
  }
}