CVE-2021-47571
What it is
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that.
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
- 0.2% 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: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Modified
Affected
- Linux Kernel < 4.4.294
- Linux Kernel < 4.9.292
- Linux Kernel < 4.14.257
- Linux Kernel < 4.19.219
- Linux Kernel < 5.4.163
- Linux Kernel < 5.10.83
- Linux Kernel < 5.15.6
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-2021-47571.md and follow it. Check whether this project is affected by CVE-2021-47571. 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/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
- https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
- https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
- https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
- https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
- https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
- https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594
- https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
References
- https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
- https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
- https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
- https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
- https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
- https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
- https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594
- https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
- https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
- https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
- https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
- https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
- https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
- https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594