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CVE Record

CVE-2022-50677: ipmi: fix use after free in _ipmi_destroy_user()

In the Linux kernel, the following vulnerability has been resolved: ipmi: fix use after free in _ipmi_destroy_user() The intf_free() function frees the "intf" pointer so we cannot dereference it again on the next line.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-50677 is a Linux kernel IPMI bug where code used a memory object after it had already been freed. Kernel memory-safety bugs can affect system stability and, depending on reachability, security boundaries. The public record does not provide CVSS, CWE, impact rating, or evidence of active exploitation.

Executive priority

Medium tracking priority until vendor impact is clarified. It is a kernel memory-safety flaw, but the public record lacks severity, exploit evidence, and operational impact details. Patch through normal kernel maintenance, escalating for systems that rely on IPMI or have strict uptime and isolation requirements.

Technical view

The issue is in _ipmi_destroy_user(). The CVE description states intf_free() frees the intf pointer, but the code dereferenced it on the following line, creating a use-after-free condition. The referenced Linux stable commits resolve the flaw across kernel branches. Exact downstream exposure depends on vendor backports and shipped kernel builds.

Likely exposure

Systems running Linux kernels with the affected IPMI code may be exposed, especially where IPMI kernel functionality is present. The source bundle lists Linux as affected and references multiple stable fixes. Distribution kernels may already contain backported fixes, so version strings alone may not be conclusive.

Exploitation context

No CISA KEV listing is present in the provided data, and the sources do not claim active exploitation or public exploit availability. The sources also do not describe attacker prerequisites, privileges, or practical exploitability. Treat this as a kernel memory-safety issue requiring vendor validation rather than confirmed emergency exploitation.

Researcher notes

Evidence is limited to the CVE record and upstream stable commit references. No CVSS, CWE, threat model, or exploitability notes are provided. Review the linked commits and downstream distro patches to determine branch-specific exposure and whether the fixed dereference is reachable in your environment.

Mitigation direction

  • Apply a vendor-supported kernel update containing the referenced Linux stable fix or backport.
  • Check Linux distribution advisories for CVE-2022-50677 mapping and package availability.
  • Prioritize systems using IPMI kernel functionality or running exposed management workloads.
  • If no vendor guidance exists, track upstream stable commits and request vendor confirmation.

Validation and detection

  • Inventory Linux kernel versions and vendor package release notes.
  • Confirm whether the vendor kernel includes one of the referenced stable fixes or a backport.
  • Identify systems where IPMI kernel components are enabled or required.
  • Monitor vendor advisories for CVSS, impact, and affected package clarification.
Prepared
Confidence
medium
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2022-50677 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxf9d405a4bd6090ffbf3bba5e2da6b44c0e013cb3, b642ced2cad496c32ae1f62b85fc395391190820, cbb79863fc3175ed5ac506465948b02a893a8235, cbb79863fc3175ed5ac506465948b02a893a8235, cbb79863fc3175ed5ac506465948b02a893a8235, cbb79863fc3175ed5ac506465948b02a893a8235, cbb79863fc3175ed5ac506465948b02a893a8235unaffected
LinuxLinux5.5, 0, 4.19.270, 5.4.229, 5.10.163, 5.15.87, 6.0.18, 6.1.4, 6.2affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.