Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2019-11811

Use After Free

Published: May 07, 2019 | Modified: Nov 21, 2024
CVSS 3.x
7
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
7 MODERATE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-11811
CWEhttps://cwe.mitre.org/data/definitions/416.html

An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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_kernelLinux4.18 (including)4.19.31 (excluding)
Linux_kernelLinux4.20 (including)5.0.4 (excluding)
Red Hat Enterprise Linux 7RedHatkernel-rt-0:3.10.0-957.27.2.rt56.940.el7*
Red Hat Enterprise Linux 7RedHatkernel-0:3.10.0-957.27.2.el7*
Red Hat Enterprise Linux 7RedHatkernel-alt-0:4.14.0-115.26.1.el7a*
Red Hat Enterprise Linux 7.4 Advanced Update SupportRedHatkernel-0:3.10.0-693.61.1.el7*
Red Hat Enterprise Linux 7.4 Telco Extended Update SupportRedHatkernel-0:3.10.0-693.61.1.el7*
Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsRedHatkernel-0:3.10.0-693.61.1.el7*
Red Hat Enterprise Linux 7.5 Extended Update SupportRedHatkernel-0:3.10.0-862.46.1.el7*
Red Hat Enterprise Linux 8RedHatkernel-rt-0:4.18.0-80.7.1.rt9.153.el8_0*
Red Hat Enterprise Linux 8RedHatkernel-0:4.18.0-80.7.1.el8_0*
Red Hat Enterprise MRG 2RedHatkernel-rt-1:3.10.0-693.61.1.rt56.656.el6rt*
LinuxUbuntucosmic*
LinuxUbuntuesm-infra-legacy/trusty*
LinuxUbuntuprecise/esm*
LinuxUbuntutrusty/esm*
LinuxUbuntuupstream*
Linux-awsUbuntucosmic*
Linux-awsUbuntuupstream*
Linux-aws-hweUbuntuupstream*
Linux-azureUbuntucosmic*
Linux-azureUbuntuesm-infra-legacy/trusty*
Linux-azureUbuntutrusty/esm*
Linux-azureUbuntuupstream*
Linux-azure-edgeUbuntuupstream*
Linux-euclidUbuntuupstream*
Linux-euclidUbuntuxenial*
Linux-floUbuntuupstream*
Linux-floUbuntuxenial*
Linux-gcpUbuntucosmic*
Linux-gcpUbuntuupstream*
Linux-gcp-edgeUbuntuupstream*
Linux-gkeUbuntuupstream*
Linux-gkeUbuntuxenial*
Linux-gke-4.15Ubuntuupstream*
Linux-gke-5.0Ubuntuupstream*
Linux-goldfishUbuntuupstream*
Linux-goldfishUbuntuxenial*
Linux-grouperUbuntuupstream*
Linux-hweUbuntubionic*
Linux-hweUbuntuesm-infra/bionic*
Linux-hweUbuntuupstream*
Linux-hwe-edgeUbuntuupstream*
Linux-kvmUbuntucosmic*
Linux-kvmUbuntuupstream*
Linux-lts-trustyUbuntuprecise/esm*
Linux-lts-trustyUbuntuupstream*
Linux-lts-utopicUbuntuupstream*
Linux-lts-vividUbuntuupstream*
Linux-lts-wilyUbuntuupstream*
Linux-lts-xenialUbuntuesm-infra-legacy/trusty*
Linux-lts-xenialUbuntutrusty/esm*
Linux-lts-xenialUbuntuupstream*
Linux-maguroUbuntuupstream*
Linux-makoUbuntuupstream*
Linux-makoUbuntuxenial*
Linux-mantaUbuntuupstream*
Linux-oemUbuntuupstream*
Linux-oemUbuntuxenial*
Linux-oracleUbuntuupstream*
Linux-raspi2Ubuntucosmic*
Linux-raspi2Ubuntuupstream*
Linux-snapdragonUbuntuupstream*

Potential Mitigations

References

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