What’s Vulnerable › Vulnerabilities

CVE-2019-19047

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% 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 mlx5_fw_fatal_reporter_dump() function in drivers/net/ethernet/mellanox/mlx5/core/health.c in the Linux kernel before 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering mlx5_crdump_collect() failures, aka CID-c7ed6d0183d5.

Affected products

• Canonical Ubuntu Linux: 18.04, 19.10
• Linux kernel: before 5.3.11 — fixed in 5.3.11

How to fix

Upgrade to a fixed version: Linux kernel 5.3.11. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
• https://github.com/torvalds/linux/commit/c7ed6d0183d5ea9bc31bcaeeba4070bd62546471
• https://security.netapp.com/advisory/ntap-20191205-0001/
• https://usn.ubuntu.com/4225-1/
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
• https://github.com/torvalds/linux/commit/c7ed6d0183d5ea9bc31bcaeeba4070bd62546471
• https://security.netapp.com/advisory/ntap-20191205-0001/
• https://usn.ubuntu.com/4225-1/

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