Cesanta MJS up to 2.19.x src/mjs_bcode.c parts_cnt assertion

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Cesanta MJS up to 2.19.x. Affected is the function parts_cnt of the file src/mjs_bcode.c. Such manipulation leads to assertion. This vulnerability is listed as CVE-2021-46508. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cesanta MJS up to 2.19.x. Affected by this issue is the function parts_cnt of the file src/mjs_bcode.c. The manipulation with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. Impacted is availability.

The weakness was presented 01/28/2022 as 188. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-46508 since 01/24/2022. There are known technical details, but no exploit is available.

Upgrading to version 2.20.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Assertion
CWE: CWE-617
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: MJS 2.20.0

Timelineinfo

01/24/2022 🔍
01/28/2022 +4 days 🔍
01/28/2022 +0 days 🔍
01/30/2022 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: 188
Status: Confirmed

CVE: CVE-2021-46508 (🔍)
GCVE (CVE): GCVE-0-2021-46508
GCVE (VulDB): GCVE-100-191828

Entryinfo

Created: 01/28/2022 10:09
Updated: 01/30/2022 10:50
Changes: 01/28/2022 10:09 (40), 01/30/2022 10:43 (1), 01/30/2022 10:50 (1)
Complete: 🔍
Cache ID: 216::103

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