CyberSecBulletin
CVE-2024-49860NVD status: Modified

Linux: Access of Resource Using Incompatible Type

Published Updated By the CyberSecBulletin desk

CVE-2024-49860 is a high-severity access of resource using incompatible type 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 92fd5209fc014405f63a7db79802ca4b01dc0c05, 2364b6af90c6b6d8a4783e0d3481ca80af699554, 4b081991c4363e072e1748efed0bbec8a77daba5 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 0.26% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Linux to 92fd5209fc014405f63a7db79802ca4b01dc0c05 or 2364b6af90c6b6d8a4783e0d3481ca80af699554 or 4b081991c4363e072e1748efed0bbec8a77daba5 or 0cdfb9178a3bba843c95c2117c82c15f1a64b9ce, whichever matches your release line, or a later version.
  2. Update Linux Kernel to 5.10.227 or 5.15.168 or 6.1.113 or 6.6.54, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LinuxLinuxd1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, 92fd5209fc014405f63a7db79802ca4b01dc0c05; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, 2364b6af90c6b6d8a4783e0d3481ca80af699554; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, 4b081991c4363e072e1748efed0bbec8a77daba5; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, 0cdfb9178a3bba843c95c2117c82c15f1a64b9ce; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, 5c8d007c14aefc3f2ddf71e4c40713733dc827be; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, f0921ecd4ddc14646bb5511f49db4d7d3b0829f0; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, f51e5a88f2e7224858b261546cf6b3037dfb1323; d1efe3c324ead77d3f6cd85093b50f6bd2e17aba up to, but not including, f51f711d36e61fbb87c67b524fd200e05172668d; and 2 more ranges92fd5209fc014405f63a7db79802ca4b01dc0c05, 2364b6af90c6b6d8a4783e0d3481ca80af699554, 4b081991c4363e072e1748efed0bbec8a77daba5, 0cdfb9178a3bba843c95c2117c82c15f1a64b9ce, 5c8d007c14aefc3f2ddf71e4c40713733dc827be, f0921ecd4ddc14646bb5511f49db4d7d3b0829f0
LinuxLinux Kernel3.7 up to, but not including, 5.10.227; 5.11 up to, but not including, 5.15.168; 5.16 up to, but not including, 6.1.113; 6.2 up to, but not including, 6.6.54; 6.7 up to, but not including, 6.10.13; 6.11 up to, but not including, 6.11.25.10.227, 5.15.168, 6.1.113, 6.6.54, 6.10.13, 6.11.2

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.

Scoring systemScoreSeverityScored by
CVSS 3.17.3HighCNA
CVSS 3.17.1HighNVD

Official description

In the Linux kernel, the following vulnerability has been resolved: ACPI: sysfs: validate return type of _STR method Only buffer objects are valid return values of _STR. If something else is returned description_show() will access invalid memory.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Access of Resource Using Incompatible Type

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

More Access of Resource Using Incompatible Type vulnerabilities (CWE-843)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Access of Resource Using Incompatible Type vulnerabilities

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