CVE-2020-28588CWE-681

An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66

Medium · published May 10, 2021

CVSS v3.0
4.0
EPSS
1%
Percentile
65.4
In the wild
Unconfirmed
What it is

An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.

The record
Technical detail
CVSS v3.0
4.0 · MEDIUM
Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01100 · 65.4th percentile
Weakness
CWE-681 · Incorrect Conversion between Numeric Types
Published
2021-05-10T18:54Z
EPSS history
Timeline
  • 10 MAY 18:54Z
    An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66
    cvelistv5