CVE-2019-19076
First published: Mon Nov 18 2019(Updated: )
** DISPUTED ** A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | <5.3.6 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =19.04 | |
| Red Hat Enterprise Linux | =8.0 | |
| Linux Kernel | <5.3.6 | |
| Ubuntu | =18.04 | |
| Ubuntu | =19.04 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6
- https://git.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2
- https://github.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96ca
- https://lore.kernel.org/lkml/20191204103955.63c4d9af@cakuba.netronome.com/
- https://security.netapp.com/advisory/ntap-20191205-0001/
- https://usn.ubuntu.com/4209-1/
- https://launchpad.net/bugs/cve/CVE-2019-19076
- https://lore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/
- https://git.kernel.org/linus/78beef629fd95be4ed853b2d37b832f766bd96ca
- https://security-tracker.debian.org/tracker/CVE-2019-19076
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19076
- https://nvd.nist.gov/vuln/detail/CVE-2019-19076
- https://ubuntu.com/security/CVE-2019-19076
Frequently Asked Questions
What is the severity of CVE-2019-19076?
CVE-2019-19076 is considered to potentially cause a denial of service due to memory consumption.
How do I fix CVE-2019-19076?
To mitigate CVE-2019-19076, upgrade to Linux kernel version 5.3.6 or later.
Which Linux distributions are affected by CVE-2019-19076?
CVE-2019-19076 affects Linux kernel versions prior to 5.3.6 across various distributions such as Ubuntu 18.04, Ubuntu 19.04, and Red Hat Enterprise Linux 8.0.
What types of attacks can CVE-2019-19076 enable?
CVE-2019-19076 could allow attackers to exploit a memory leak, potentially leading to service disruptions.
Is CVE-2019-19076 a valid vulnerability?
CVE-2019-19076 has been disputed by some experts who argue it may not be a valid vulnerability.
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