CVE-2022-49956
What it is
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.
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: 7.0 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 < 4.9.328
- Linux Kernel < 4.14.293
- Linux Kernel < 4.19.258
- Linux Kernel < 5.4.213
- Linux Kernel < 5.10.142
- Linux Kernel < 5.15.66
- Linux Kernel < 5.19.8
- Linux Kernel 6.0
Attack profile CVSS 3.1 · 7.0
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/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-2022-49956.md and follow it. Check whether this project is affected by CVE-2022-49956. 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/19e3f69d19801940abc2ac37c169882769ed9770
- https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171a
- https://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063
- https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27
- https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1
- https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38
- https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77
- https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0
References
- https://git.kernel.org/stable/c/19e3f69d19801940abc2ac37c169882769ed9770
- https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171a
- https://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063
- https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27
- https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1
- https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38
- https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77
- https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0