Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2019-19319

Use After Free

Published: Nov 27, 2019 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
4.4 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.8 MODERATE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-19319
CWEhttps://cwe.mitre.org/data/definitions/416.html

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
Linux_kernelLinux5.0.21 (including)5.0.21 (including)
Red Hat Enterprise Linux 8RedHatkernel-rt-0:4.18.0-240.rt7.54.el8*
Red Hat Enterprise Linux 8RedHatkernel-0:4.18.0-240.el8*
LinuxUbuntubionic*
LinuxUbuntudisco*
LinuxUbuntuesm-infra-legacy/trusty*
LinuxUbuntuesm-infra/bionic*
LinuxUbuntuesm-infra/xenial*
LinuxUbuntuprecise/esm*
LinuxUbuntutrusty*
LinuxUbuntutrusty/esm*
LinuxUbuntuupstream*
LinuxUbuntuxenial*
Linux-awsUbuntubionic*
Linux-awsUbuntudisco*
Linux-awsUbuntuesm-infra-legacy/trusty*
Linux-awsUbuntuesm-infra/bionic*
Linux-awsUbuntuesm-infra/xenial*
Linux-awsUbuntutrusty*
Linux-awsUbuntutrusty/esm*
Linux-awsUbuntuupstream*
Linux-awsUbuntuxenial*
Linux-aws-5.0Ubuntubionic*
Linux-aws-5.0Ubuntuesm-infra/bionic*
Linux-aws-5.0Ubuntuupstream*
Linux-aws-5.15Ubuntuupstream*
Linux-aws-5.3Ubuntuupstream*
Linux-aws-5.4Ubuntuupstream*
Linux-aws-6.14Ubuntuupstream*
Linux-aws-6.8Ubuntuupstream*
Linux-aws-fipsUbuntufips-updates/bionic*
Linux-aws-fipsUbuntufips/bionic*
Linux-aws-fipsUbuntutrusty*
Linux-aws-fipsUbuntuupstream*
Linux-aws-fipsUbuntuxenial*
Linux-aws-hweUbuntuesm-infra/xenial*
Linux-aws-hweUbuntuupstream*
Linux-aws-hweUbuntuxenial*
Linux-azureUbuntubionic*
Linux-azureUbuntudisco*
Linux-azureUbuntuesm-infra-legacy/trusty*
Linux-azureUbuntuesm-infra/bionic*
Linux-azureUbuntuesm-infra/xenial*
Linux-azureUbuntutrusty*
Linux-azureUbuntutrusty/esm*
Linux-azureUbuntuupstream*
Linux-azureUbuntuxenial*
Linux-azure-4.15Ubuntuupstream*
Linux-azure-5.15Ubuntuupstream*
Linux-azure-5.3Ubuntuupstream*
Linux-azure-5.4Ubuntuupstream*
Linux-azure-6.11Ubuntuupstream*
Linux-azure-6.14Ubuntuupstream*
Linux-azure-6.8Ubuntuupstream*
Linux-azure-edgeUbuntubionic*
Linux-azure-edgeUbuntuesm-infra/bionic*
Linux-azure-edgeUbuntuupstream*
Linux-azure-fdeUbuntuesm-infra/focal*
Linux-azure-fdeUbuntufocal*
Linux-azure-fdeUbuntuupstream*
Linux-azure-fde-5.15Ubuntuesm-infra/focal*
Linux-azure-fde-5.15Ubuntufocal*
Linux-azure-fde-5.15Ubuntuupstream*
Linux-azure-fde-6.14Ubuntuupstream*
Linux-azure-fde-6.8Ubuntuupstream*
Linux-azure-fipsUbuntufips-updates/bionic*
Linux-azure-fipsUbuntufips/bionic*
Linux-azure-fipsUbuntutrusty*
Linux-azure-fipsUbuntuupstream*
Linux-azure-fipsUbuntuxenial*
Linux-azure-nvidiaUbuntuupstream*
Linux-azure-nvidia-6.14Ubuntuupstream*
Linux-bluefieldUbuntuupstream*
Linux-fipsUbuntufips-updates/xenial*
Linux-fipsUbuntufips/bionic*
Linux-fipsUbuntufips/xenial*
Linux-fipsUbuntuupstream*
Linux-gcpUbuntubionic*
Linux-gcpUbuntudisco*
Linux-gcpUbuntuesm-infra/bionic*
Linux-gcpUbuntuesm-infra/xenial*
Linux-gcpUbuntuupstream*
Linux-gcpUbuntuxenial*
Linux-gcp-4.15Ubuntuupstream*
Linux-gcp-5.15Ubuntuupstream*
Linux-gcp-5.3Ubuntuupstream*
Linux-gcp-5.4Ubuntuupstream*
Linux-gcp-6.11Ubuntuupstream*
Linux-gcp-6.14Ubuntuupstream*
Linux-gcp-6.8Ubuntuupstream*
Linux-gcp-edgeUbuntubionic*
Linux-gcp-edgeUbuntuesm-infra/bionic*
Linux-gcp-edgeUbuntuupstream*
Linux-gcp-fipsUbuntufips/bionic*
Linux-gcp-fipsUbuntutrusty*
Linux-gcp-fipsUbuntuupstream*
Linux-gcp-fipsUbuntuxenial*
Linux-gkeUbuntuesm-infra/focal*
Linux-gkeUbuntufocal*
Linux-gkeUbuntuupstream*
Linux-gkeUbuntuxenial*
Linux-gke-4.15Ubuntubionic*
Linux-gke-4.15Ubuntuesm-infra/bionic*
Linux-gke-4.15Ubuntuupstream*
Linux-gke-5.0Ubuntubionic*
Linux-gke-5.0Ubuntuupstream*
Linux-gke-5.3Ubuntuupstream*
Linux-gkeopUbuntuupstream*
Linux-gkeop-5.15Ubuntuupstream*
Linux-hweUbuntubionic*
Linux-hweUbuntuesm-infra/bionic*
Linux-hweUbuntuesm-infra/xenial*
Linux-hweUbuntuupstream*
Linux-hweUbuntuxenial*
Linux-hwe-5.15Ubuntuupstream*
Linux-hwe-5.4Ubuntuupstream*
Linux-hwe-6.11Ubuntuupstream*
Linux-hwe-6.14Ubuntuupstream*
Linux-hwe-6.8Ubuntuupstream*
Linux-hwe-edgeUbuntubionic*
Linux-hwe-edgeUbuntuesm-infra/bionic*
Linux-hwe-edgeUbuntuesm-infra/xenial*
Linux-hwe-edgeUbuntuupstream*
Linux-hwe-edgeUbuntuxenial*
Linux-ibmUbuntuupstream*
Linux-ibm-5.15Ubuntuupstream*
Linux-ibm-5.4Ubuntuupstream*
Linux-ibm-6.8Ubuntuupstream*
Linux-intelUbuntuupstream*
Linux-intel-iot-realtimeUbuntujammy*
Linux-intel-iot-realtimeUbuntuupstream*
Linux-intel-iotgUbuntuupstream*
Linux-intel-iotg-5.15Ubuntuupstream*
Linux-iotUbuntuupstream*
Linux-kvmUbuntubionic*
Linux-kvmUbuntudisco*
Linux-kvmUbuntuesm-infra/bionic*
Linux-kvmUbuntuesm-infra/xenial*
Linux-kvmUbuntuupstream*
Linux-kvmUbuntuxenial*
Linux-lowlatencyUbuntuupstream*
Linux-lowlatency-hwe-5.15Ubuntuupstream*
Linux-lowlatency-hwe-6.11Ubuntuupstream*
Linux-lowlatency-hwe-6.8Ubuntuupstream*
Linux-lts-trustyUbuntuprecise/esm*
Linux-lts-trustyUbuntuupstream*
Linux-lts-xenialUbuntuesm-infra-legacy/trusty*
Linux-lts-xenialUbuntutrusty*
Linux-lts-xenialUbuntutrusty/esm*
Linux-lts-xenialUbuntuupstream*
Linux-nvidiaUbuntuupstream*
Linux-nvidia-6.11Ubuntuupstream*
Linux-nvidia-6.5Ubuntuupstream*
Linux-nvidia-6.8Ubuntuupstream*
Linux-nvidia-lowlatencyUbuntuupstream*
Linux-nvidia-tegraUbuntuupstream*
Linux-nvidia-tegra-5.15Ubuntuupstream*
Linux-nvidia-tegra-igxUbuntuupstream*
Linux-oemUbuntubionic*
Linux-oemUbuntudisco*
Linux-oemUbuntueoan*
Linux-oemUbuntuesm-infra/bionic*
Linux-oemUbuntuupstream*
Linux-oemUbuntuxenial*
Linux-oem-5.6Ubuntuupstream*
Linux-oem-6.11Ubuntuupstream*
Linux-oem-6.14Ubuntuupstream*
Linux-oem-6.17Ubuntuupstream*
Linux-oem-6.8Ubuntuupstream*
Linux-oem-osp1Ubuntubionic*
Linux-oem-osp1Ubuntudisco*
Linux-oem-osp1Ubuntueoan*
Linux-oem-osp1Ubuntuupstream*
Linux-oracleUbuntubionic*
Linux-oracleUbuntudisco*
Linux-oracleUbuntuesm-infra/bionic*
Linux-oracleUbuntuesm-infra/xenial*
Linux-oracleUbuntuupstream*
Linux-oracleUbuntuxenial*
Linux-oracle-5.0Ubuntubionic*
Linux-oracle-5.0Ubuntuesm-infra/bionic*
Linux-oracle-5.0Ubuntuupstream*
Linux-oracle-5.15Ubuntuupstream*
Linux-oracle-5.3Ubuntuupstream*
Linux-oracle-5.4Ubuntuupstream*
Linux-oracle-6.14Ubuntuupstream*
Linux-oracle-6.8Ubuntuupstream*
Linux-raspiUbuntuupstream*
Linux-raspi-5.4Ubuntuupstream*
Linux-raspi-realtimeUbuntunoble*
Linux-raspi-realtimeUbuntuupstream*
Linux-raspi2Ubuntubionic*
Linux-raspi2Ubuntudisco*
Linux-raspi2Ubuntuesm-infra/focal*
Linux-raspi2Ubuntufocal*
Linux-raspi2Ubuntuupstream*
Linux-raspi2Ubuntuxenial*
Linux-raspi2-5.3Ubuntuupstream*
Linux-realtimeUbuntujammy*
Linux-realtimeUbuntuupstream*
Linux-realtime-6.14Ubuntuupstream*
Linux-realtime-6.8Ubuntuupstream*
Linux-riscvUbuntujammy*
Linux-riscvUbuntuupstream*
Linux-riscv-5.15Ubuntuupstream*
Linux-riscv-6.14Ubuntuupstream*
Linux-riscv-6.8Ubuntuupstream*
Linux-snapdragonUbuntubionic*
Linux-snapdragonUbuntudisco*
Linux-snapdragonUbuntuupstream*
Linux-snapdragonUbuntuxenial*
Linux-xilinxUbuntuupstream*
Linux-xilinx-zynqmpUbuntuupstream*

Potential Mitigations

References

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