CVE-2021-47345
What it is
In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix rdma_resolve_route() memory leak Fix a memory leak when "mda_resolve_route() is called more than once on the same "rdma_cm_id". This is possible if cma_query_handler() triggers the RDMA_CM_EVENT_ROUTE_ERROR flow which puts the state machine back and allows rdma_resolve_route() to be called again.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-401
- Record status
- Analyzed
Affected
- Linux Kernel < 4.4.276
- Linux Kernel < 4.9.276
- Linux Kernel < 4.14.240
- Linux Kernel < 4.19.198
- Linux Kernel < 5.4.133
- Linux Kernel < 5.10.51
- Linux Kernel < 5.12.18
- Linux Kernel < 5.13.3
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-47345.md and follow it. Check whether this project is affected by CVE-2021-47345. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972
- https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac
- https://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6
- https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b
- https://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198f
- https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9
- https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a
- https://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8
- https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939
- https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972
References
- https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972
- https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac
- https://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6
- https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b
- https://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198f
- https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9
- https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a
- https://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8
- https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939
- https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972
- https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac
- https://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6
- https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b
- https://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198f
- https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9
- https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a
- https://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8
- https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939