CVE-2024-43853: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-6xgm-r8j8-r5hq
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CVSS 5.5
CWE-416
Published
Advisory Summary

CVE-2024-43853 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-416: Use After Free) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.. Remediation is available in the latest vendor maintenance releases.

CVE-2024-43853 at a Glance

CVE Identifier CVE-2024-43853
GHSA Identifier GHSA-6xgm-r8j8-r5hq
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-416: Use After Free
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-2024-43853

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-2024-43853, 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. 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: cgroup/cpuset: Prevent UAF in proc_cpuset_show() An UAF can happen when /proc/cpuset is read as reported in [1]. This can be reproduced by the following methods: 1.add an mdelay(1000) before acquiring the cgroup_lock In the cgroup_path_ns function. 2.$cat /proc/<pid>/cpuset repeatly. 3.$mount -t cgroup -o cpuset cpuset /sys/fs/cgroup/cpuset/ $umount /sys/fs/cgroup/cpuset/ repeatly. The race that cause this bug can be shown as below: (umount) | (cat /proc/<pid>/cpuset) css_release | proc_cpuset_show css_release_work_fn | css = task_get_css(tsk, cpuset_cgrp_id); css_free_rwork_fn | cgroup_path_ns(css->cgroup, ...); cgroup_destroy_root | mutex_lock(&cgroup_mutex); rebind_subsystems | cgroup_free_root | | // cgrp was freed, UAF | cgroup_path_ns_locked(cgrp,..); When the cpuset is initialized, the root node top_cpuset.css.cgrp will point to &cgrp_dfl_root.cgrp. In cgroup v1, the mount operation will allocate cgroup_root, and top_cpuset.css.cgrp will point to the allocated &cgroup_root.cgrp. When the umount operation is executed, top_cpuset.css.cgrp will be rebound to &cgrp_dfl_root.cgrp. The problem is that when rebinding to cgrp_dfl_root, there are cases where the cgroup_root allocated by setting up the root for cgroup v1 is cached. This could lead to a Use-After-Free (UAF) if it is subsequently freed. The descendant cgroups of cgroup v1 can only be freed after the css is released. However, the css of the root will never be released, yet the cgroup_root should be freed when it is unmounted. This means that obtaining a reference to the css of the root does not guarantee that css.cgrp->root will not be freed. Fix this problem by using rcu_read_lock in proc_cpuset_show(). As cgroup_root is kfree_rcu after commit d23b5c577715 ("cgroup: Make operations on the cgroup root_list RCU safe"), css->cgroup won't be freed during the critical section. To call cgroup_path_ns_locked, css_set_lock is needed, so it is safe to replace task_get_css with task_css. [1] https://syzkaller.appspot.com/bug?extid=9b1ff7be974a403aa4cd

References

NVD — CVE-2024-43853 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-43853
git.kernel.org/stable/c/10aeaa47e4... WEB
https://git.kernel.org/stable/c/10aeaa47e4aa2432f29b3e5376df96d7dac5537a
git.kernel.org/stable/c/1be59c97c8... WEB
https://git.kernel.org/stable/c/1be59c97c83ccd67a519d8a49486b3a8a73ca28a
git.kernel.org/stable/c/27d6dbdc64... WEB
https://git.kernel.org/stable/c/27d6dbdc6485d68075a0ebf8544d6425c1ed84bb
git.kernel.org/stable/c/29a8d4e02f... WEB
https://git.kernel.org/stable/c/29a8d4e02fd4840028c38ceb1536cc8f82a257d4
git.kernel.org/stable/c/29ac1d238b... WEB
https://git.kernel.org/stable/c/29ac1d238b3bf126af36037df80d7ecc4822341e
git.kernel.org/stable/c/4e8d6ac8fc... WEB
https://git.kernel.org/stable/c/4e8d6ac8fc9f843e940ab7389db8136634e07989
git.kernel.org/stable/c/688325078a... WEB
https://git.kernel.org/stable/c/688325078a8b5badd6e07ae22b27cd04e9947aec
git.kernel.org/stable/c/96226fbed5... WEB
https://git.kernel.org/stable/c/96226fbed566f3f686f53a489a29846f2d538080
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-43853?
CVE-2024-43853 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-416: Use After Free.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2024-43853?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2024-43853?
CVE-2024-43853 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-2024-43853?
CVE-2024-43853 is classified under CWE-416: Use After Free (The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.).
How can I check Maven dependencies for CVE-2024-43853?
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-6xgm-r8j8-r5hq",
  "modified" : "2025-11-04T00:31:16Z",
  "published" : "2024-08-17T12:30:33Z",
  "aliases" : [ "CVE-2024-43853" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: Prevent UAF in proc_cpuset_show()\n\nAn UAF can happen when /proc/cpuset is read as reported in [1].\n\nThis can be reproduced by the following methods:\n1.add an mdelay(1000) before acquiring the cgroup_lock In the\n cgroup_path_ns function.\n2.$cat /proc/<pid>/cpuset   repeatly.\n3.$mount -t cgroup -o cpuset cpuset /sys/fs/cgroup/cpuset/\n$umount /sys/fs/cgroup/cpuset/   repeatly.\n\nThe race that cause this bug can be shown as below:\n\n(umount)\t\t|\t(cat /proc/<pid>/cpuset)\ncss_release\t\t|\tproc_cpuset_show\ncss_release_work_fn\t|\tcss = task_get_css(tsk, cpuset_cgrp_id);\ncss_free_rwork_fn\t|\tcgroup_path_ns(css->cgroup, ...);\ncgroup_destroy_root\t|\tmutex_lock(&cgroup_mutex);\nrebind_subsystems\t|\ncgroup_free_root \t|\n\t\t\t|\t// cgrp was freed, UAF\n\t\t\t|\tcgroup_path_ns_locked(cgrp,..);\n\nWhen the cpuset is initialized, the root node top_cpuset.css.cgrp\nwill point to &cgrp_dfl_root.cgrp. In cgroup v1, the mount operation will\nallocate cgroup_root, and top_cpuset.css.cgrp will point to the allocated\n&cgroup_root.cgrp. When the umount operation is executed,\ntop_cpuset.css.cgrp will be rebound to &cgrp_dfl_root.cgrp.\n\nThe problem is that when rebinding to cgrp_dfl_root, there are cases\nwhere the cgroup_root allocated by setting up the root for cgroup v1\nis cached. This could lead to a Use-After-Free (UAF) if it is\nsubsequently freed. The descendant cgroups of cgroup v1 can only be\nfreed after the css is released. However, the css of the root will never\nbe released, yet the cgroup_root should be freed when it is unmounted.\nThis means that obtaining a reference to the css of the root does\nnot guarantee that css.cgrp->root will not be freed.\n\nFix this problem by using rcu_read_lock in proc_cpuset_show().\nAs cgroup_root is kfree_rcu after commit d23b5c577715\n(\"cgroup: Make operations on the cgroup root_list RCU safe\"),\ncss->cgroup won't be freed during the critical section.\nTo call cgroup_path_ns_locked, css_set_lock is needed, so it is safe to\nreplace task_get_css with task_css.\n\n[1] https://syzkaller.appspot.com/bug?extid=9b1ff7be974a403aa4cd",
  "severity" : [ {
    "type" : "CVSS_V3",
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  }, {
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  }, {
    "type" : "WEB",
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  } ],
  "database_specific" : {
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  }
}