Description
An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.
Published: 2020-02-25
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Advisories
Source ID Title
EUVD EUVD EUVD-2020-30212 An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.
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Fedoraproject Fedora
Linux Linux Kernel
Netapp Active Iq Unified Manager Cloud Backup Data Availability Services H410c H410c Firmware Hci Management Node Solidfire Steelstore Cloud Integrated Storage
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T10:26:16.079Z

Reserved: 2020-02-25T00:00:00.000Z

Link: CVE-2020-9391

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-02-25T18:15:11.647

Modified: 2024-11-21T05:40:32.890

Link: CVE-2020-9391

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-02-25T00:00:00Z

Links: CVE-2020-9391 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses