CVE-2019-19046
Vulnerability Summary
Timeline
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 Metrics
- v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 6.8AV:N/AC:L/Au:S/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 2.74%• Percentile: 86%
Techniques & Countermeasures
- CWE-401•Missing Release of Memory after Effective Lifetime
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Affected Systems
- debian•linux
< 5.4.19-1 | < 5.4.19-1 | < 5.4.19-1 | < 5.4.19-1
- ubuntu•linux
< 4.15.0-91.92
- ubuntu•linux-aws
< 4.15.0-1063.67
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1063.67~16.04.1
- ubuntu•linux-azure
< 4.15.0-1074.79~14.04.1 | < 4.15.0-1075.80 | < 5.0.0-1036.38
- ubuntu•linux-azure-5.3
< 5.3.0-1019.20~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-gcp
< 4.15.0-1058.62 | < 5.0.0-1034.35
- ubuntu•linux-gcp-5.3
< 5.3.0-1017.18~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1055.58
- ubuntu•linux-gke-5.0
< 5.0.0-1033.34
- ubuntu•linux-gke-5.3
< 5.3.0-1017.18~18.04.1
- ubuntu•linux-hwe
< 4.15.0-91.92~16.04.1 | < 5.3.0-46.38~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.15.0-1056.57
- ubuntu•linux-oem
< 4.15.0-1076.86
- ubuntu•linux-oem-osp1
< 5.0.0-1047.52
- ubuntu•linux-oracle
< 4.15.0-1035.38~16.04.1 | < 4.15.0-1035.39
- ubuntu•linux-oracle-5.0
< 5.0.0-1014.19
- ubuntu•linux-oracle-5.3
< 5.3.0-1014.15~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.15.0-1057.61 | all
- ubuntu•linux-raspi2-5.3
< 5.3.0-1022.24~18.04.1
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
- ubuntu•linux-snapdragon
< 4.15.0-1074.81
- fedoraproject•fedora
30 | 31
- linux•linux_kernel
≤ 5.3.11
- opensuse•leap
15.1
References (14)
- https://github.com/torvalds/linux/commit/4aa7afb0ee20a97fbf0c5bab3df028d5fb85fdab
- https://bugzilla.suse.com/show_bug.cgi?id=1157304
- 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/
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- https://usn.ubuntu.com/4302-1/
- https://usn.ubuntu.com/4325-1/
- https://usn.ubuntu.com/4319-1/
- https://ubuntu.com/security/CVE-2019-19046
- https://ubuntu.com/security/notices/USN-4302-1
- https://ubuntu.com/security/notices/USN-4319-1
- https://ubuntu.com/security/notices/USN-4325-1
- https://www.cve.org/CVERecord?id=CVE-2019-19046
- https://security-tracker.debian.org/tracker/CVE-2019-19046