X.org X11 Server/libX11 up to 1.7.0 LookupCol.c XLookupColor buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability, which was classified as critical, was found in X.org X11 Server and libX11 up to 1.7.0 (Windowing System Software). Affected is the function XLookupColor of the file LookupCol.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 05/28/2021. The advisory is available at unparalleled.eu. This vulnerability is traded as CVE-2021-31535. Technical details are known, but there is no available exploit.

Upgrading to version 1.7.1 eliminates this vulnerability.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

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

Local: No
Remote: Yes

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: X11 Server/libX11 1.7.1

Timelineinfo

04/21/2021 🔍
05/28/2021 +37 days 🔍
05/28/2021 +0 days 🔍
05/30/2021 +2 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: unparalleled.eu
Status: Confirmed

CVE: CVE-2021-31535 (🔍)

Entryinfo

Created: 05/28/2021 07:45
Updated: 05/30/2021 14:34
Changes: 05/28/2021 07:45 (40), 05/30/2021 14:34 (5)
Complete: 🔍

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