CVE-2021-47060: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-6x38-gwgp-2pcm
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CVSS 6.0
Published
Advisory Summary

CVE-2021-47060 is a MODERATE (CVSS 6.0) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2021-47060 at a Glance

CVE Identifier CVE-2021-47060
GHSA Identifier GHSA-6x38-gwgp-2pcm
Severity MODERATE
CVSS v3.1 Base Score 6.0
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.0

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

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

How to Fix CVE-2021-47060

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

Verify Direct and Transitive Dependencies

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

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-47060, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software 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: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, 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

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvm_io_bus_unregister_dev() fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus, unregister_dev() destroys all devices _except_ the target device. But, it doesn't tell the caller that it obliterated the bus and invoked the destructor for all devices that were on the bus. In the coalesced MMIO case, this can result in a deleted list entry dereference due to attempting to continue iterating on coalesced_zones after future entries (in the walk) have been deleted. Opportunistically add curly braces to the for-loop, which encompasses many lines but sneaks by without braces due to the guts being a single if statement.

References

NVD — CVE-2021-47060 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47060
git.kernel.org/stable/c/168e82f640... WEB
https://git.kernel.org/stable/c/168e82f640ed1891a700bdb43e37da354b2ab63c
git.kernel.org/stable/c/2a20592baf... WEB
https://git.kernel.org/stable/c/2a20592baff59c5351c5200ec667e1a2aa22af85
git.kernel.org/stable/c/50cbad42bf... WEB
https://git.kernel.org/stable/c/50cbad42bfea8c052b7ca590bd4126cdc898713c
git.kernel.org/stable/c/5d3c4c7938... WEB
https://git.kernel.org/stable/c/5d3c4c79384af06e3c8e25b7770b6247496b4417
git.kernel.org/stable/c/7d1bc32d64... WEB
https://git.kernel.org/stable/c/7d1bc32d6477ff96a32695ea4be8144e4513ab2d

Frequently Asked Questions

What is CVE-2021-47060?
CVE-2021-47060 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2021-47060?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2021-47060?
CVE-2021-47060 has a CVSS v3.1 base score of 6.0 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2021-47060?
CVE-2021-47060 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2021-47060?
Run the dependency tree command: 'mvn dependency:tree'. 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-6x38-gwgp-2pcm",
  "modified" : "2024-11-07T18:31:19Z",
  "published" : "2024-03-01T00:30:28Z",
  "aliases" : [ "CVE-2021-47060" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: Stop looking for coalesced MMIO zones if the bus is destroyed\n\nAbort the walk of coalesced MMIO zones if kvm_io_bus_unregister_dev()\nfails to allocate memory for the new instance of the bus.  If it can't\ninstantiate a new bus, unregister_dev() destroys all devices _except_ the\ntarget device.   But, it doesn't tell the caller that it obliterated the\nbus and invoked the destructor for all devices that were on the bus.  In\nthe coalesced MMIO case, this can result in a deleted list entry\ndereference due to attempting to continue iterating on coalesced_zones\nafter future entries (in the walk) have been deleted.\n\nOpportunistically add curly braces to the for-loop, which encompasses\nmany lines but sneaks by without braces due to the guts being a single\nif statement.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-47060"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/168e82f640ed1891a700bdb43e37da354b2ab63c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2a20592baff59c5351c5200ec667e1a2aa22af85"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/50cbad42bfea8c052b7ca590bd4126cdc898713c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5d3c4c79384af06e3c8e25b7770b6247496b4417"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7d1bc32d6477ff96a32695ea4be8144e4513ab2d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2024-02-29T23:15:07Z"
  }
}