What is CVE-2022-23477?

CVE-2022-23477 is a critical-severity vulnerability in Neutrinolabs Xrdp, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.1/10. Published 2022-12-09.

How severe is CVE-2022-23477?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2022-23477 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Neutrinolabs Xrdp

CVE-2022-23477

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a buffer over flow in audin_send_open() function. There are no known workarounds for t…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (48.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Neutrinolabs Xrdp — versions < 0.9.21

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

seyrenus/trace-release

References

https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-hqw2-jx2c-wrr2 (x_refsource_CONFIRM)
www.debian.org/security/2023/dsa-5502

Frequently asked questions

What is CVE-2022-23477?: CVE-2022-23477 is a critical-severity vulnerability in Neutrinolabs Xrdp, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.1/10. Published 2022-12-09.
How severe is CVE-2022-23477?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2022-23477 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.