Linux: Out-of-bounds Read
CVE-2022-48866 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists versions 3ffbe85cda7f523dad896bae08cecd8db8b555ab, 56185434e1e50acecee56d8f5850135009b87947, fc3ef2e3297b3c0e2006b5d7b3d66965e3392036 as the first without the flaw, so updating Linux to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.27% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Linux to 3ffbe85cda7f523dad896bae08cecd8db8b555ab or 56185434e1e50acecee56d8f5850135009b87947 or fc3ef2e3297b3c0e2006b5d7b3d66965e3392036, whichever matches your release line, or a later version.
- Update Linux Kernel to 5.15.29 or 5.16.15, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Linux | Linux | c49c33637802a2c6957a78119eb8be3b055dd9e9 up to, but not including, 3ffbe85cda7f523dad896bae08cecd8db8b555ab; c49c33637802a2c6957a78119eb8be3b055dd9e9 up to, but not including, 56185434e1e50acecee56d8f5850135009b87947; c49c33637802a2c6957a78119eb8be3b055dd9e9 up to, but not including, fc3ef2e3297b3c0e2006b5d7b3d66965e3392036; 5.13 | 3ffbe85cda7f523dad896bae08cecd8db8b555ab, 56185434e1e50acecee56d8f5850135009b87947, fc3ef2e3297b3c0e2006b5d7b3d66965e3392036 |
| Linux | Linux Kernel | 5.13 up to, but not including, 5.15.29; 5.16 up to, but not including, 5.16.15 | 5.15.29, 5.16.15 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
Official description
In the Linux kernel, the following vulnerability has been resolved: HID: hid-thrustmaster: fix OOB read in thrustmaster_interrupts Syzbot reported an slab-out-of-bounds Read in thrustmaster_probe() bug. The root case is in missing validation check of actual number of endpoints. Code should not blindly access usb_host_interface::endpoint array, since it may contain less endpoints than code expects. Fix it by adding missing validaion check and print an error if number of endpoints do not match expected number
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
Recent Out-of-bounds Read vulnerabilities
- 7.1 High severity
- 7.8 High severity
- 7.1 High severity
- 7.1 High severity
- 9.1 Critical severity
- 8.8 High severity
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