CVE-2024-27019: fedora — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process.

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-362 CWE-362

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.10 — 5.15.157
linux	linux_kernel	5.16 — 6.1.88
linux	linux_kernel	6.2 — 6.6.29
linux	linux_kernel	6.7 — 6.8.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
fedoraproject	fedora	All
fedoraproject	fedora	All
fedoraproject	fedora	All

References

Advisories & Patches

Other References

https://git.kernel.org/stable/c/cade34279c2249eafe528564bd2e203e4ff15f88 https://git.kernel.org/stable/c/cade34279c2249eafe528564bd2e203e4ff15f88 https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/

Frequently Asked Questions

What is CVE-2024-27019? +

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2024-27019? +

CVE-2024-27019 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-27019? +

CVE-2024-27019 affects products from fedoraproject, linux, specifically: fedora, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27019? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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