Tengine 2.2.2 Nginx Range Filter integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Tengine 2.2.2 and classified as problematic. This vulnerability affects unknown code of the component Nginx Range Filter Module. Executing a manipulation can lead to integer overflow. The identification of this vulnerability is CVE-2020-21699. There is no exploit available.

Detailsinfo

A vulnerability was found in Tengine 2.2.2. It has been declared as problematic. This vulnerability affects an unknown code of the component Nginx Range Filter Module. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality. CVE summarizes:

The web server Tengine 2.2.2 developed in the Nginx version from 0.5.6 thru 1.13.2 is vulnerable to an integer overflow vulnerability in the nginx range filter module, resulting in the leakage of potentially sensitive information triggered by specially crafted requests.

The weakness was shared 08/23/2023. The advisory is shared for download at github.com. This vulnerability was named CVE-2020-21699 since 08/13/2020. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2020 🔍
08/23/2023 +1105 days 🔍
08/23/2023 +0 days 🔍
09/14/2023 +22 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2020-21699 (🔍)
GCVE (CVE): GCVE-0-2020-21699
GCVE (VulDB): GCVE-100-237724

Entryinfo

Created: 08/23/2023 08:04
Updated: 09/14/2023 15:33
Changes: 08/23/2023 08:04 (36), 09/14/2023 15:33 (11)
Complete: 🔍
Cache ID: 216::103

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