7.8
HIGH
CVE-2022-4283
X.Org Xkb Copy Names Double Free Vulnerability
Description

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

INFO

Published Date :

Dec. 14, 2022, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 7:34 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2022-4283 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Debian debian_linux
1 X.org xorg-server
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-4283.

URL Resource
https://access.redhat.com/security/cve/CVE-2022-4283 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2151761 Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202305-30
https://www.debian.org/security/2022/dsa-5304 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-4283 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2151761 Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202305-30
https://www.debian.org/security/2022/dsa-5304 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-4283 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-4283 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/security/cve/CVE-2022-4283
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2151761
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/
    Added Reference https://security.gentoo.org/glsa/202305-30
    Added Reference https://www.debian.org/security/2022/dsa-5304
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 30, 2023

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202305-30 [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 23, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ Mailing List, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2022/dsa-5304 No Types Assigned https://www.debian.org/security/2022/dsa-5304 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Changed Description A vulnerability was found in X.Org. This issue occurs because the XkbCopyNames function leaves a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests. This flaw can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions. A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.
    Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Removed Reference https://access.redhat.com/errata/RHSA-2023:0045 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2023:0046 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. A vulnerability was found in X.Org. This issue occurs because the XkbCopyNames function leaves a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests. This flaw can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added Reference https://access.redhat.com/errata/RHSA-2023:0046 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2023:0045 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 27, 2022

    Action Type Old Value New Value
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ [Mailing List, Third Party Advisory]
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ [Mailing List, Third Party Advisory]
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 26, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 21, 2022

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2022/dsa-5304 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 19, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2022-4283 No Types Assigned https://access.redhat.com/security/cve/CVE-2022-4283 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2151761 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2151761 Issue Tracking, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ Mailing List, Third Party Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:a:x.org:xorg-server:1.20.4:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 19, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 16, 2022

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-4283 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-4283 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.78 }} 2.28%

score

0.90336

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability