CVE-2020-28588 — MEDIUM (5.5)

Vulnerability Description

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.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	5.4.66

Related Weaknesses (CWE)

CWE-681

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211ExploitTechnical DescriptionThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211ExploitTechnical DescriptionThird Party Advisory

FAQ

What is CVE-2020-28588?

CVE-2020-28588 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 631b7...

How severe is CVE-2020-28588?

CVE-2020-28588 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-28588?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.