X.org Server xkb/xkb.c _GetCountedString buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in X.org Server. Impacted is the function _GetCountedString of the file xkb/xkb.c. This manipulation causes buffer overflow. This vulnerability is handled as CVE-2022-3550. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical was found in X.org Server (affected version unknown). Affected by this vulnerability is the function _GetCountedString of the file xkb/xkb.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 10/17/2022. It is possible to read the advisory at cgit.freedesktop.org. This vulnerability is known as CVE-2022-3550. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211143 (Fedora 37 : xorg-x11-server (2022-64ad80875c)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.freedesktop.org.

The vulnerability is also documented in the databases at Tenable (211143) and EUVD (EUVD-2022-42916). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (VulDB): 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211143
Nessus Name: Fedora 37 : xorg-x11-server (2022-64ad80875c)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

10/17/2022 🔍
10/17/2022 +0 days 🔍
10/17/2022 +0 days 🔍
07/17/2026 +1369 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: cgit.freedesktop.org
Status: Confirmed

CVE: CVE-2022-3550 (🔍)
GCVE (CVE): GCVE-0-2022-3550
GCVE (VulDB): GCVE-100-211051
EUVD: 🔍

Entryinfo

Created: 10/17/2022 14:24
Updated: 07/17/2026 05:07
Changes: 10/17/2022 14:24 (39), 11/09/2022 18:00 (2), 11/09/2022 18:08 (21), 11/17/2024 05:45 (16), 07/17/2026 05:07 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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