Microsoft security update for CVE-2023-3439
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-3439. This page also shows what EchelonGraph holds for CVE-2023-3439, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products3
- cbl2 hyperv-daemons 5.15.126.1-1 on CBL Mariner 2.0
- cbl2 kernel 5.15.126.1-1 on CBL Mariner 2.0
- cm1 kernel 5.10.185.1-1 on CBL Mariner 1.0
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 5.10.185.1-1 |
| — | Security Update | 5.15.126.1-1 |
🧭 EchelonGraph on CVE-2023-3439
- EchelonGraph score
- 4.7 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
Published by Fedora Project, the CVE Numbering Authority that assigned CVE-2023-3439, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).