PT-2024-5429 · Linux+7 · Linux Kernel+7
Al Viro
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Published
2024-04-08
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Updated
2026-01-06
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CVE-2024-39494
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a use-after-free vulnerability in the Linux kernel's IMA (Integrity Measurement Architecture) component, specifically in the
ima collect measurement() function. This vulnerability can be exploited to impact the confidentiality, integrity, and availability of protected information. The vulnerability occurs because the d name.name field of a dentry can change when renamed, and the earlier value can be freed. However, the conditions to stabilize this, such as d lock on the dentry, its parent, or i rwsem exclusive on the parent's inode, and rename lock, are not met at the affected sites. To resolve this, a stable snapshot of the name is taken instead.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu