PJSIP integer underflow

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in PJSIP. The impacted element is an unknown function. This manipulation causes integer underflow. The identification of this vulnerability is CVE-2021-37706. It is possible to initiate the attack remotely. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in PJSIP (the affected version is unknown). It has been declared as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 12/22/2021 as GHSA-2qpg-f6wf-w984. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-37706 since 07/29/2021. The technical details are unknown and an exploit is not publicly available.

Applying the patch 15663e3f37091069b8c98a7fce680dc04bc8e865 is able to eliminate this problem. The bugfix is ready for download at github.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 7.3
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / 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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 15663e3f37091069b8c98a7fce680dc04bc8e865

Timelineinfo

07/29/2021 🔍
12/22/2021 +146 days 🔍
12/22/2021 +0 days 🔍
11/04/2025 +1413 days 🔍

Sourcesinfo

Advisory: GHSA-2qpg-f6wf-w984
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-37706 (🔍)
GCVE (CVE): GCVE-0-2021-37706
GCVE (VulDB): GCVE-100-188899

Entryinfo

Created: 12/22/2021 20:24
Updated: 11/04/2025 21:08
Changes: 12/22/2021 20:24 (48), 12/25/2021 18:35 (2), 12/25/2021 18:42 (1), 11/04/2025 21:08 (33)
Complete: 🔍
Cache ID: 216::103

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