medium
6.8
CWE
401 400
Advisory Published
CVE Published
Updated

CVE-2019-19046

First published: Mon Nov 18 2019(Updated: )

** DISPUTED ** A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of this because an attacker cannot realistically control this failure at probe time.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1160.rt56.1131.el7
0:3.10.0-1160.rt56.1131.el7
redhat/kernel-alt<0:4.14.0-115.29.1.el7a
0:4.14.0-115.29.1.el7a
redhat/kernel<0:3.10.0-1160.el7
0:3.10.0-1160.el7
redhat/kernel<0:3.10.0-957.65.1.el7
0:3.10.0-957.65.1.el7
redhat/kernel<0:3.10.0-1062.40.1.el7
0:3.10.0-1062.40.1.el7
redhat/kernel-rt<0:4.18.0-240.rt7.54.el8
0:4.18.0-240.rt7.54.el8
redhat/kernel<0:4.18.0-240.el8
0:4.18.0-240.el8
Linux Kernel<=5.3.11
Fedora=30
Fedora=31
SUSE Linux=15.1
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Remedy

https://github.com/torvalds/linux/commit/4aa7afb0ee20a97fbf0c5bab3df028d5fb85fdab

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-19046?

    CVE-2019-19046 has been classified as a denial of service vulnerability due to a memory leak.

  • How do I fix CVE-2019-19046?

    To mitigate CVE-2019-19046, update your Linux kernel to versions 5.3.12 or later, or apply the respective patches from your distribution.

  • Which Linux distributions are affected by CVE-2019-19046?

    CVE-2019-19046 affects multiple Linux distributions including certain versions of Red Hat, Debian, Fedora, and openSUSE.

  • What kind of attack can exploit CVE-2019-19046?

    CVE-2019-19046 can be exploited by attackers to cause a denial of service by triggering memory consumption.

  • Is CVE-2019-19046 a low or high impact vulnerability?

    CVE-2019-19046 is considered a high impact vulnerability as it can lead to service disruptions.

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