CVE-2018-25033: Admesh Out-of-bounds Read Vulnerability

HIGH
Advisory Identifier: GHSA-5jrq-582v-9767
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CVSS 8.1
CWE-125
Published
Advisory Summary

CVE-2018-25033 is a HIGH (CVSS 8.1) out-of-bounds read vulnerability (CWE-125: Out-of-bounds Read) affecting Admesh libraries in the PyPI ecosystem. The issue involves out-of-bounds read in admesh. Remediation is available by upgrading affected packages to version 0.98.5.

CVE-2018-25033 at a Glance

CVE Identifier CVE-2018-25033
GHSA Identifier GHSA-5jrq-582v-9767
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Admesh
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.1

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

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

How to Fix CVE-2018-25033

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

admesh fixed: 0.98.5 
pip install admesh>=0.98.5
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 admesh

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2018-25033, inspect your installed packages using pip:

pip show admesh

Analyze the terminal output to locate any version of Admesh in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.98.5), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. In Admesh, 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

ADMesh through 0.98.4 has a heap-based buffer over-read in stl_update_connects_remove_1 (called from stl_remove_degenerate) in connect.c in libadmesh.a.

CVE-2018-25033 Affected Admesh Versions

1 component(s)
Fixed Versions:
0.98.5
Product / Package Ecosystem Affected Versions Fixed Version
admesh
pypi/admesh
PyPI
< 0.98.5
0.98.5

References

NVD — CVE-2018-25033 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-25033
Admesh Source Repository REPOSITORY
https://github.com/admesh/admesh/issues/28
Admesh Source Repository REPOSITORY
https://github.com/admesh/admesh
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-5jrq-582v-9767
Admesh Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/admesh/PYSEC-2022-182.yaml
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2022/05/msg00029.html

Frequently Asked Questions

What is CVE-2018-25033?
CVE-2018-25033 is a security vulnerability in Admesh involving Out-of-bounds read in admesh under CWE-125: Out-of-bounds Read.
Which Admesh versions are affected?
Affected versions include releases prior to 0.98.5 across affected packages: admesh.
What version fixes CVE-2018-25033?
Upgrading to 0.98.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is admesh affected?
Yes, admesh is affected in releases prior to 0.98.5. Upgrade your dependency to 0.98.5 or later.
What is the CVSS score of CVE-2018-25033?
CVE-2018-25033 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2018-25033?
CVE-2018-25033 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check PyPI dependencies for CVE-2018-25033?
Run the dependency tree command: 'pip show admesh'. 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-5jrq-582v-9767",
  "modified" : "2022-05-25T19:38:05Z",
  "published" : "2022-05-09T00:00:51Z",
  "aliases" : [ "CVE-2018-25033" ],
  "summary" : "Out-of-bounds read in admesh",
  "details" : "ADMesh through 0.98.4 has a heap-based buffer over-read in stl_update_connects_remove_1 (called from stl_remove_degenerate) in connect.c in libadmesh.a.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "admesh"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.98.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-25033"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/admesh/admesh/issues/28"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/admesh/admesh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-5jrq-582v-9767"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/admesh/PYSEC-2022-182.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2022/05/msg00029.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-05-25T19:38:05Z",
    "nvd_published_at" : "2022-05-08T06:15:00Z"
  }
}