CVE-2023-52568: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-mxqg-3qg8-9qfj
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CVSS 4.7
CWE-476
Published
Advisory Summary

CVE-2023-52568 is a MODERATE (CVSS 4.7) 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-2023-52568 at a Glance

CVE Identifier CVE-2023-52568
GHSA Identifier GHSA-mxqg-3qg8-9qfj
Severity MODERATE
CVSS v3.1 Base Score 4.7
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.7

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

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
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-2023-52568

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-2023-52568, 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: x86/sgx: Resolves SECS reclaim vs. page fault for EAUG race The SGX EPC reclaimer (ksgxd) may reclaim the SECS EPC page for an enclave and set secs.epc_page to NULL. The SECS page is used for EAUG and ELDU in the SGX page fault handler. However, the NULL check for secs.epc_page is only done for ELDU, not EAUG before being used. Fix this by doing the same NULL check and reloading of the SECS page as needed for both EAUG and ELDU. The SECS page holds global enclave metadata. It can only be reclaimed when there are no other enclave pages remaining. At that point, virtually nothing can be done with the enclave until the SECS page is paged back in. An enclave can not run nor generate page faults without a resident SECS page. But it is still possible for a #PF for a non-SECS page to race with paging out the SECS page: when the last resident non-SECS page A triggers a #PF in a non-resident page B, and then page A and the SECS both are paged out before the #PF on B is handled. Hitting this bug requires that race triggered with a #PF for EAUG. Following is a trace when it happens. BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:sgx_encl_eaug_page+0xc7/0x210 Call Trace: ? __kmem_cache_alloc_node+0x16a/0x440 ? xa_load+0x6e/0xa0 sgx_vma_fault+0x119/0x230 __do_fault+0x36/0x140 do_fault+0x12f/0x400 __handle_mm_fault+0x728/0x1110 handle_mm_fault+0x105/0x310 do_user_addr_fault+0x1ee/0x750 ? __this_cpu_preempt_check+0x13/0x20 exc_page_fault+0x76/0x180 asm_exc_page_fault+0x27/0x30

References

NVD — CVE-2023-52568 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-52568
git.kernel.org/stable/c/1348f7f15d... WEB
https://git.kernel.org/stable/c/1348f7f15d7c7798456856bee74a4235c2da994e
git.kernel.org/stable/c/811ba2ef0c... WEB
https://git.kernel.org/stable/c/811ba2ef0cb6402672e64ba1419d6ef95aa3405d
git.kernel.org/stable/c/c6c2adcba5... WEB
https://git.kernel.org/stable/c/c6c2adcba50c2622ed25ba5d5e7f05f584711358

Frequently Asked Questions

What is CVE-2023-52568?
CVE-2023-52568 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-2023-52568?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2023-52568?
CVE-2023-52568 has a CVSS v3.1 base score of 4.7 (MODERATE) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2023-52568?
CVE-2023-52568 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-2023-52568?
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-mxqg-3qg8-9qfj",
  "modified" : "2024-12-11T18:30:36Z",
  "published" : "2024-03-03T00:30:32Z",
  "aliases" : [ "CVE-2023-52568" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/sgx: Resolves SECS reclaim vs. page fault for EAUG race\n\nThe SGX EPC reclaimer (ksgxd) may reclaim the SECS EPC page for an\nenclave and set secs.epc_page to NULL. The SECS page is used for EAUG\nand ELDU in the SGX page fault handler. However, the NULL check for\nsecs.epc_page is only done for ELDU, not EAUG before being used.\n\nFix this by doing the same NULL check and reloading of the SECS page as\nneeded for both EAUG and ELDU.\n\nThe SECS page holds global enclave metadata. It can only be reclaimed\nwhen there are no other enclave pages remaining. At that point,\nvirtually nothing can be done with the enclave until the SECS page is\npaged back in.\n\nAn enclave can not run nor generate page faults without a resident SECS\npage. But it is still possible for a #PF for a non-SECS page to race\nwith paging out the SECS page: when the last resident non-SECS page A\ntriggers a #PF in a non-resident page B, and then page A and the SECS\nboth are paged out before the #PF on B is handled.\n\nHitting this bug requires that race triggered with a #PF for EAUG.\nFollowing is a trace when it happens.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nRIP: 0010:sgx_encl_eaug_page+0xc7/0x210\nCall Trace:\n ? __kmem_cache_alloc_node+0x16a/0x440\n ? xa_load+0x6e/0xa0\n sgx_vma_fault+0x119/0x230\n __do_fault+0x36/0x140\n do_fault+0x12f/0x400\n __handle_mm_fault+0x728/0x1110\n handle_mm_fault+0x105/0x310\n do_user_addr_fault+0x1ee/0x750\n ? __this_cpu_preempt_check+0x13/0x20\n exc_page_fault+0x76/0x180\n asm_exc_page_fault+0x27/0x30",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-52568"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1348f7f15d7c7798456856bee74a4235c2da994e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/811ba2ef0cb6402672e64ba1419d6ef95aa3405d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c6c2adcba50c2622ed25ba5d5e7f05f584711358"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2024-03-02T22:15:49Z"
  }
}