CVE-2023-42822

2023-09-2718:15:11

CWE-125

GitHub_M

web.nvd.nist.gov

xrdp

cve-2023-42822

vulnerability

remote desktop protocol

font glyphs

privilege escalation

nvd

upgrade

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.4

Confidence

High

EPSS

0.001

Percentile

30.5%

JSON

xrdp is an open source remote desktop protocol server. Access to the font glyphs in xrdp_painter.c is not bounds-checked . Since some of this data is controllable by the user, this can result in an out-of-bounds read within the xrdp executable. The vulnerability allows an out-of-bounds read within a potentially privileged process. On non-Debian platforms, xrdp tends to run as root. Potentially an out-of-bounds write can follow the out-of-bounds read. There is no denial-of-service impact, providing xrdp is running in forking mode. This issue has been addressed in release 0.9.23.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected configurations

Nvd

Vulners

Node

neutrinolabsxrdpRange<0.9.23.1

Node

fedoraprojectfedoraMatch37

fedoraprojectfedoraMatch38

VendorProductVersionCPE
neutrinolabsxrdp*cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*
fedoraprojectfedora37cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
fedoraprojectfedora38cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
neutrinolabs	xrdp	*	cpe:2.3:a:neutrinolabs:xrdp::::::::
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*
fedoraproject	fedora	38	cpe:2.3:o:fedoraproject:fedora:38:::::::*

CNA Affected

[
  {
    "vendor": "neutrinolabs",
    "product": "xrdp",
    "versions": [
      {
        "version": "< 0.9.23.1",
        "status": "affected"
      }
    ]
  }
]