Linux: Improper Validation of Array Index
CVE-2024-41028 is a high-severity improper validation of array index vulnerability in Linux, with a CVSS 3.1 base score of 7.8 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 e030aa6c972641cb069086a8c7a0f747653e472a, 639868f1cb87b683cf830353bbee0c4078202313, 0d71da43d6b7916d36cf1953d793da80433c50bf 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 0.3% 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 e030aa6c972641cb069086a8c7a0f747653e472a or 639868f1cb87b683cf830353bbee0c4078202313 or 0d71da43d6b7916d36cf1953d793da80433c50bf or b6e02c6b0377d4339986e07aeb696c632cd392aa, whichever matches your release line, or a later version.
- Update Linux Kernel to 6.1.100 or 6.6.41 or 6.9.10, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Linux | Linux | 3cb1f40dfdc3b9f5449076c96b4e2523139f5cd0 up to, but not including, e030aa6c972641cb069086a8c7a0f747653e472a; 3cb1f40dfdc3b9f5449076c96b4e2523139f5cd0 up to, but not including, 639868f1cb87b683cf830353bbee0c4078202313; 3cb1f40dfdc3b9f5449076c96b4e2523139f5cd0 up to, but not including, 0d71da43d6b7916d36cf1953d793da80433c50bf; 3cb1f40dfdc3b9f5449076c96b4e2523139f5cd0 up to, but not including, b6e02c6b0377d4339986e07aeb696c632cd392aa; 6.1 | e030aa6c972641cb069086a8c7a0f747653e472a, 639868f1cb87b683cf830353bbee0c4078202313, 0d71da43d6b7916d36cf1953d793da80433c50bf, b6e02c6b0377d4339986e07aeb696c632cd392aa |
| Linux | Linux Kernel | 6.1 up to, but not including, 6.1.100; 6.2 up to, but not including, 6.6.41; 6.7 up to, but not including, 6.9.10; 6.10 | 6.1.100, 6.6.41, 6.9.10 |
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
- HighData or code can be modified at will.
- 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:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.1 | High | CNA |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
In the Linux kernel, the following vulnerability has been resolved: platform/x86: toshiba_acpi: Fix array out-of-bounds access In order to use toshiba_dmi_quirks[] together with the standard DMI matching functions, it must be terminated by a empty entry. Since this entry is missing, an array out-of-bounds access occurs every time the quirk list is processed. Fix this by adding the terminating empty entry.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Validation of Array Index
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.
How developers prevent this class of flaw
- Use an input validation framework such as Struts or the OWASP ESAPI Validation API. Note that using a framework does not automatically address all input validation problems; be mindful of weaknesses that could arise from misusing the framework itself (CWE-1173).
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, Ada allows the programmer to constrain the values of a variable and languages such as Java and Ruby will allow the programmer to handle exceptions when an out-of-bounds index is accessed.
- Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment. For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND.
More Improper Validation of Array Index vulnerabilities (CWE-129)
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
Other references
Recent Improper Validation of Array Index vulnerabilities
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 7.8 High severity
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