What’s Vulnerable › Vulnerabilities

CVE-2019-19071

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% 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 rsi_send_beacon() function in drivers/net/wireless/rsi/rsi_91x_mgmt.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering rsi_prepare_beacon() failures, aka CID-d563131ef23c.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 19.10
• Linux kernel: from 4.14 before 4.14.159; from 4.15 before 4.19.89; from 4.20 before 5.3.16; from 5.4.0 before 5.4.3 — fixed in 4.14.159, 4.19.89, 5.3.16, 5.4.3

How to fix

Upgrade to a fixed version: Linux kernel 4.14.159, 4.19.89, 5.3.16, 5.4.3. Check the vendor advisory for mitigations.

References

• https://github.com/torvalds/linux/commit/d563131ef23cbc756026f839a82598c8445bc45f
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
• https://security.netapp.com/advisory/ntap-20191205-0001/
• https://usn.ubuntu.com/4258-1/
• https://usn.ubuntu.com/4284-1/
• https://usn.ubuntu.com/4287-1/
• https://usn.ubuntu.com/4287-2/
• https://github.com/torvalds/linux/commit/d563131ef23cbc756026f839a82598c8445bc45f
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
• https://security.netapp.com/advisory/ntap-20191205-0001/

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