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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References
History
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MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2020-02-25T17:55:59
Updated: 2024-08-04T10:26:16.079Z
Reserved: 2020-02-25T00:00:00
Link: CVE-2020-9391
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-02-25T18:15:11.647
Modified: 2023-11-07T03:26:51.937
Link: CVE-2020-9391
Redhat