CVE-2022-49919
netfilter: nf_tables: release flow rule object from commit path
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Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flow rule object from commit path No need to postpone this to the commit release path, since no packets are walking over this object, this is accessed from control plane only. This helped uncovered UAF triggered by races with the netlink notifier.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/26b5934ff4194e13196bedcba373cd4915071d0e
- https://git.kernel.org/stable/c/4ab6f96444e936f5e4a936d5c0bc948144bcded3
- https://git.kernel.org/stable/c/6044791b7be707fd0e709f26e961a446424e5051
- https://git.kernel.org/stable/c/74fd5839467054cd9c4d050614d3ee8788386171
- https://git.kernel.org/stable/c/b2d7a92aff0fbd93c29d2aa6451fb99f050e2c4e
References (5)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
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