xorg-x11-server up to 1.20.10 Xserver integer underflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in xorg-x11-server up to 1.20.10. This affects an unknown part of the component Xserver. The manipulation results in integer underflow. This vulnerability is reported as CVE-2021-3472. The attack requires a local approach. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in xorg-x11-server up to 1.20.10 (Windowing System Software). Affected is an unknown function of the component Xserver. The manipulation with an unknown input leads to a integer underflow vulnerability. CWE is classifying the issue as CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 04/27/2021. The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2021-3472. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.20.11 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: xorg-x11-server 1.20.11

Timelineinfo

03/29/2021 🔍
04/27/2021 +29 days 🔍
04/27/2021 +0 days 🔍
05/02/2021 +5 days 🔍

Sourcesinfo

Advisory: zerodayinitiative.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3472 (🔍)
GCVE (CVE): GCVE-0-2021-3472
GCVE (VulDB): GCVE-100-174132

Entryinfo

Created: 04/27/2021 15:08
Updated: 05/02/2021 07:19
Changes: 04/27/2021 15:08 (39), 05/02/2021 07:19 (5)
Complete: 🔍
Cache ID: 216::103

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