CVE-2023-3439

Summary

CVECVE-2023-3439
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-06-28 21:15:00 UTC
Updated2023-07-06 21:39:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 5.18 rc1 All All
Operating System Linux Linux Kernel 5.18 rc2 All All
Operating System Linux Linux Kernel 5.18 rc3 All All
Operating System Linux Linux Kernel 5.18 rc4 All All

References

ReferenceSourceLinkTags
mctp: defer the kfree of object mdev->addrs · torvalds/linux@b561275 · GitHub MISC github.com
oss-security - CVE-2023-3439: Linux MCTP use-after-free in mctp_sendmsg MLIST www.openwall.com
2217915 – (CVE-2023-3439) CVE-2023-3439 kernel: mctp: use-after-free read in mctp_local_output() MISC bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 199604 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6246-1)
  • 199612 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6255-1)
  • 907076 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (27359-1)
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