GHSA-cxcc-q839-2cw9: columnar `Read` On Uninitialized Buffer May Vulnerability

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Advisory Summary

GHSA-cxcc-q839-2cw9 is a HIGH `read` on uninitialized buffer may vulnerability (General Security Weakness) affecting columnar libraries in the crates.io ecosystem. The issue involves `read` on uninitialized buffer may cause ub (columnarreadext::read_typed_vec()). Remediation is available in the latest vendor maintenance releases.

GHSA-cxcc-q839-2cw9 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-cxcc-q839-2cw9
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product columnar
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-cxcc-q839-2cw9

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

columnar fixed: Latest secure release 
Upgrade columnar to Latest secure release
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 columnar

How to Check if You Are Affected

To determine whether your application is affected by GHSA-cxcc-q839-2cw9, inspect your project dependencies for columnar:

inspect dependencies for columnar

Analyze the terminal output to locate any version of columnar in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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 General Security Weakness. In columnar, 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

Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation (`ColumnarReadExt::read_typed_vec()`). Arbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.

GHSA-cxcc-q839-2cw9 Affected columnar Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
columnar
 crates.io
≤ 0.0.19

References

columnar Source Repository REPOSITORY
https://github.com/frankmcsherry/columnar/issues/6
columnar Source Repository REPOSITORY
https://github.com/frankmcsherry/columnar
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2021-0087.html

Frequently Asked Questions

What is GHSA-cxcc-q839-2cw9?
GHSA-cxcc-q839-2cw9 is a security vulnerability in columnar involving `Read` on uninitialized buffer may cause UB (ColumnarReadExt::read_typed_vec()) under General Security Weakness.
Which columnar versions are affected?
Affected versions include releases prior to current release patches across affected packages: columnar.
What version fixes GHSA-cxcc-q839-2cw9?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is columnar affected?
Yes, columnar is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-cxcc-q839-2cw9?
GHSA-cxcc-q839-2cw9 is classified under General Security Weakness.
How can I check crates.io dependencies for GHSA-cxcc-q839-2cw9?
Run the dependency tree command: 'inspect dependencies for columnar'. 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-cxcc-q839-2cw9",
  "modified" : "2023-06-13T17:06:58Z",
  "published" : "2022-06-16T23:48:53Z",
  "aliases" : [ ],
  "summary" : "columnar: `Read` on uninitialized buffer may cause UB (ColumnarReadExt::read_typed_vec())",
  "details" : "Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation (`ColumnarReadExt::read_typed_vec()`).\nArbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer.\nReading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "columnar"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.0.19"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/frankmcsherry/columnar/issues/6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/frankmcsherry/columnar"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2021-0087.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-16T23:48:53Z",
    "nvd_published_at" : null
  }
}