CVE-2022-50459: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-f7xj-99j9-66q2
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2022-50459 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2022-50459 at a Glance

CVE Identifier CVE-2022-50459
GHSA Identifier GHSA-f7xj-99j9-66q2
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2022-50459

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-2022-50459, 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 CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() Fix a NULL pointer crash that occurs when we are freeing the socket at the same time we access it via sysfs. The problem is that: 1. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() take the frwd_lock and do sock_hold() then drop the frwd_lock. sock_hold() does a get on the "struct sock". 2. iscsi_sw_tcp_release_conn() does sockfd_put() which does the last put on the "struct socket" and that does __sock_release() which sets the sock->ops to NULL. 3. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() then call kernel_getpeername() which accesses the NULL sock->ops. Above we do a get on the "struct sock", but we needed a get on the "struct socket". Originally, we just held the frwd_lock the entire time but in commit bcf3a2953d36 ("scsi: iscsi: iscsi_tcp: Avoid holding spinlock while calling getpeername()") we switched to refcount based because the network layer changed and started taking a mutex in that path, so we could no longer hold the frwd_lock. Instead of trying to maintain multiple refcounts, this just has us use a mutex for accessing the socket in the interface code paths.

References

NVD — CVE-2022-50459 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-50459
git.kernel.org/stable/c/0a0b861fce... WEB
https://git.kernel.org/stable/c/0a0b861fce2657ba08ec356a74346b37ca4b2008
git.kernel.org/stable/c/57569c37f0... WEB
https://git.kernel.org/stable/c/57569c37f0add1b6489e1a1563c71519daf732cf
git.kernel.org/stable/c/884a788f06... WEB
https://git.kernel.org/stable/c/884a788f065578bb640382279a83d1df433b13e6
git.kernel.org/stable/c/897dbbc57d... WEB
https://git.kernel.org/stable/c/897dbbc57d71e8a34ec1af8e573a142de457da38
git.kernel.org/stable/c/a26b065875... WEB
https://git.kernel.org/stable/c/a26b0658751bb0a3b28386fca715333b104d32a2

Frequently Asked Questions

What is CVE-2022-50459?
CVE-2022-50459 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2022-50459?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2022-50459?
CVE-2022-50459 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-50459?
CVE-2022-50459 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2022-50459?
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 
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  "id" : "GHSA-f7xj-99j9-66q2",
  "modified" : "2026-01-16T21:30:28Z",
  "published" : "2025-10-01T12:30:29Z",
  "aliases" : [ "CVE-2022-50459" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()\n\nFix a NULL pointer crash that occurs when we are freeing the socket at the\nsame time we access it via sysfs.\n\nThe problem is that:\n\n 1. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() take\n    the frwd_lock and do sock_hold() then drop the frwd_lock. sock_hold()\n    does a get on the \"struct sock\".\n\n 2. iscsi_sw_tcp_release_conn() does sockfd_put() which does the last put\n    on the \"struct socket\" and that does __sock_release() which sets the\n    sock->ops to NULL.\n\n 3. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() then\n    call kernel_getpeername() which accesses the NULL sock->ops.\n\nAbove we do a get on the \"struct sock\", but we needed a get on the \"struct\nsocket\". Originally, we just held the frwd_lock the entire time but in\ncommit bcf3a2953d36 (\"scsi: iscsi: iscsi_tcp: Avoid holding spinlock while\ncalling getpeername()\") we switched to refcount based because the network\nlayer changed and started taking a mutex in that path, so we could no\nlonger hold the frwd_lock.\n\nInstead of trying to maintain multiple refcounts, this just has us use a\nmutex for accessing the socket in the interface code paths.",
  "severity" : [ {
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  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2025-10-01T12:15:39Z"
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}