CVE-2021-47310
What it is
In the Linux kernel, the following vulnerability has been resolved: net: ti: fix UAF in tlan_remove_one priv is netdev private data and it cannot be used after free_netdev() call. Using priv after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, 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: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Linux Kernel < 4.4.277
- Linux Kernel < 4.9.277
- Linux Kernel < 4.14.241
- Linux Kernel < 4.19.199
- Linux Kernel < 5.4.135
- Linux Kernel < 5.10.53
- Linux Kernel < 5.13.5
- Linux Kernel 5.14
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2021-47310.md and follow it. Check whether this project is affected by CVE-2021-47310. 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/0336f8ffece62f882ab3012820965a786a983f70
- https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9
- https://git.kernel.org/stable/c/93efab0ef2a607fff9166d447c4035f98b5db342
- https://git.kernel.org/stable/c/a0a817b2d308fac090a05cbbe80988e073ac5193
- https://git.kernel.org/stable/c/a18a8d9cfbb112ad72e625372849adc3986fd6bf
- https://git.kernel.org/stable/c/b7e5563f2a7862a9e4796abb9908b092f677e3c1
- https://git.kernel.org/stable/c/c263ae8c7e4c482387de5e6c89e213f8173fe8b6
- https://git.kernel.org/stable/c/f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405
- https://git.kernel.org/stable/c/0336f8ffece62f882ab3012820965a786a983f70
- https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9
References
- https://git.kernel.org/stable/c/0336f8ffece62f882ab3012820965a786a983f70
- https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9
- https://git.kernel.org/stable/c/93efab0ef2a607fff9166d447c4035f98b5db342
- https://git.kernel.org/stable/c/a0a817b2d308fac090a05cbbe80988e073ac5193
- https://git.kernel.org/stable/c/a18a8d9cfbb112ad72e625372849adc3986fd6bf
- https://git.kernel.org/stable/c/b7e5563f2a7862a9e4796abb9908b092f677e3c1
- https://git.kernel.org/stable/c/c263ae8c7e4c482387de5e6c89e213f8173fe8b6
- https://git.kernel.org/stable/c/f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405
- https://git.kernel.org/stable/c/0336f8ffece62f882ab3012820965a786a983f70
- https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9
- https://git.kernel.org/stable/c/93efab0ef2a607fff9166d447c4035f98b5db342
- https://git.kernel.org/stable/c/a0a817b2d308fac090a05cbbe80988e073ac5193
- https://git.kernel.org/stable/c/a18a8d9cfbb112ad72e625372849adc3986fd6bf
- https://git.kernel.org/stable/c/b7e5563f2a7862a9e4796abb9908b092f677e3c1
- https://git.kernel.org/stable/c/c263ae8c7e4c482387de5e6c89e213f8173fe8b6
- https://git.kernel.org/stable/c/f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405