CVE-2019-19046Missing Release of Memory after Effective Lifetime in Linux

Severity
6.5MEDIUMNVD
OSV5.5
EPSS
0.8%
top 25.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedNov 18
Latest updateMay 24

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

Debianlinux/linux_kernel< 5.4.19-1+3
Ubuntulinux/linux_kernel< 4.15.0-91.92
NVDlinux/linux_kernel5.3.11
debiandebian/linux< linux 5.4.19-1 (bookworm)
NVDopensuse/leap15.1

Also affects: Fedora 30, 31

Patches

🔴Vulnerability Details

5
GHSA
GHSA-j58x-5m9c-f2g5: A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler2022-05-24
OSV
linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities2020-04-10
OSV
linux-azure, linux-gcp, linux-gke-5.0, linux-oem-osp1, linux-oracle-5.0 vulnerabilities2020-04-07
OSV
linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon, linux-azure vulnerabilities2020-03-25
OSV
CVE-2019-19046: A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler2019-11-18

📋Vendor Advisories

4
Ubuntu
Linux kernel vulnerabilities2020-04-10
Ubuntu
Linux kernel vulnerabilities2020-03-25
Red Hat
kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c2019-11-18
Debian
CVE-2019-19046: linux - A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_ms...2019

💬Community

2
Bugzilla
CVE-2019-19046 kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c2019-11-21
Bugzilla
CVE-2019-19046 kernel: dos in in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c [fedora-all]2019-11-21