CVE-2019-5489 Information disclosure in n/a

What is CVE-2019-5489?

CVE-2019-5489 is a medium-severity vulnerability in Linux kernel, published on 7 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13 allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server.

Weakness: CWE-319

Which versions are affected by CVE-2019-5489?

It affects 3 products.

Products include Linux kernel, Netapp Active Iq Performance Analytics Services, Netapp Element Software Management Node.

How do I fix CVE-2019-5489?

Apply the vendor's patch.

Is CVE-2019-5489 being exploited?

There is no known exploitation of CVE-2019-5489 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-5489, GHSA-384f-f7vj-vfh4, RHSA-2019:2808, UBUNTU-CVE-2019-5489.