CVEvulnerability
CVE-2023-3439
4.7 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2023-06-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
Description
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.
Affected configurations
• linux linux kernel (>= 5.15 <= 5.17)
• linux linux kernel 5.18
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- http://www.openwall.com/lists/oss-security/2023/07/02/1 Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2217915 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269 Patch
- http://www.openwall.com/lists/oss-security/2023/07/02/1 Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2217915 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269 Patch