What is CVE-2023-0977?

CVE-2023-0977 is a medium-severity vulnerability in Linux Linux_kernel, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2023-04-03.

How severe is CVE-2023-0977?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Linux Linux_kernel

CVE-2023-0977

A heap-based overflow vulnerability in Trellix Agent (Windows and Linux) version 5.7.8 and earlier, allows a remote user to alter the page heap in the macmnsvc process memory block resulting in the service becoming unavailable.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (41.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux Linux_kernel
Microsoft Windows
Trellix Agent
Trellix Agent — versions 5.7.8

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)
CWE-787 — Out-of-bounds Write

References

trellixpsirt@trellix.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-0977?: CVE-2023-0977 is a medium-severity vulnerability in Linux Linux_kernel, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2023-04-03.
How severe is CVE-2023-0977?: Medium severity. CVSS v3 base score is 6.7 out of 10.