Linux: Out-of-bounds Read
CVE-2024-49928 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 83c84cdb75572048b67d6a3916283aeac865996e, 4007c3d2da31d0c755ea3fcf55e395118e5d5621, ed2e4bb17a4884cf29c3347353d8aabb7265b46c 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 0.24% 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 83c84cdb75572048b67d6a3916283aeac865996e or 4007c3d2da31d0c755ea3fcf55e395118e5d5621 or ed2e4bb17a4884cf29c3347353d8aabb7265b46c, whichever matches your release line, or a later version.
- Update Linux Kernel to 6.10.14 or 6.11.3, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Linux | Linux | 5ee7b2ea07cc6972bc505103f5d483943754a601 up to, but not including, 83c84cdb75572048b67d6a3916283aeac865996e; 5ee7b2ea07cc6972bc505103f5d483943754a601 up to, but not including, 4007c3d2da31d0c755ea3fcf55e395118e5d5621; 5ee7b2ea07cc6972bc505103f5d483943754a601 up to, but not including, ed2e4bb17a4884cf29c3347353d8aabb7265b46c; 6.7 | 83c84cdb75572048b67d6a3916283aeac865996e, 4007c3d2da31d0c755ea3fcf55e395118e5d5621, ed2e4bb17a4884cf29c3347353d8aabb7265b46c |
| Linux | Linux Kernel | before 6.10.14; 6.11 up to, but not including, 6.11.3 | 6.10.14, 6.11.3 |
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: wifi: rtw89: avoid reading out of bounds when loading TX power FW elements Because the loop-expression will do one more time before getting false from cond-expression, the original code copied one more entry size beyond valid region. Fix it by moving the entry copy to loop-body.
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
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
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