CVE-2020-9391

An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture

published February 25, 2020

CVSS
—
EPSS
1%
Percentile
43.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00517 · 43.1th percentile
Published
2020-02-25T17:55Z
EPSS history
Timeline
  • 25 FEB 17:55Z
    An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture
    cvelistv5