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CVE-2024-42285

Linux Kernel use-after-free

9.8 CRITICALEPSS 0.87%
  1. Published17 Aug 2024

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix a use-after-free related to destroying CM IDs iw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with an existing struct iw_cm_id (cm_id) as follows: conn_id->cm_id.iw = cm_id; cm_id->context = conn_id; cm_id->cm_handler = cma_iw_handler; rdma_destroy_id() frees both the cm_id and the struct rdma_id_private. Make sure that cm_work_handler() does not trigger a use-after-free by only freeing of the struct rdma_id_private after all pending work has finished.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 4.20 < 5.4.282 · ≥ 4.8 < 4.19.320 · ≥ 5.11 < 5.15.165 · ≥ 5.16 < 6.1.103

Frequently asked

Is CVE-2024-42285 being actively exploited?

CVE-2024-42285 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.87%.

How severe is CVE-2024-42285?

CVE-2024-42285 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.87% probability of exploitation.

Which products are affected by CVE-2024-42285?

Affected products include Linux Kernel.

How do I fix CVE-2024-42285?

Upgrade affected software to a fixed version, for example Linux Kernel 5.4.282 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-42285 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.