XScreenSaver 5.45 Video Output update_screen_layout buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in XScreenSaver 5.45. This vulnerability affects the function update_screen_layout of the component Video Output Handler. Performing a manipulation results in buffer overflow. This vulnerability is reported as CVE-2021-34557. The attack may be carried out on the physical device. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in XScreenSaver 5.45. This affects the function update_screen_layout of the component Video Output Handler. 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 disclosed 06/10/2021. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-34557. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/10/2021 🔍
06/10/2021 +0 days 🔍
06/10/2021 +0 days 🔍
06/13/2021 +3 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2021-34557 (🔍)
GCVE (CVE): GCVE-0-2021-34557
GCVE (VulDB): GCVE-100-176817

Entryinfo

Created: 06/10/2021 21:44
Updated: 06/13/2021 10:30
Changes: 06/10/2021 21:44 (36), 06/13/2021 10:30 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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