What’s Vulnerable › Vulnerabilities

CVE-2019-19049

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-18 · updated 2026-06-17
• Weakness: CWE-401

Description

A memory leak in the unittest_data_add() function in drivers/of/unittest.c in the Linux kernel before 5.3.10 allows attackers to cause a denial of service (memory consumption) by triggering of_fdt_unflatten_tree() failures, aka CID-e13de8fe0d6a. NOTE: third parties dispute the relevance of this because unittest.c can only be reached during boot

Affected products

• Linux kernel: from 3.17 before 4.4.200; from 4.5 before 4.9.200; from 4.10 before 4.14.153; from 4.15 before 4.19.83; from 4.20 before 5.3.10 — fixed in 4.14.153, 4.19.83, 4.4.200, 4.9.200, 5.3.10
• openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Linux kernel 4.14.153, 4.19.83, 4.4.200, 4.9.200. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
• https://bugzilla.suse.com/show_bug.cgi?id=1157173
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
• https://github.com/torvalds/linux/commit/e13de8fe0d6a51341671bbe384826d527afe8d44
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
• https://bugzilla.suse.com/show_bug.cgi?id=1157173
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
• https://github.com/torvalds/linux/commit/e13de8fe0d6a51341671bbe384826d527afe8d44

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