Microsoft Visual Studio up to 2017 15.9/2019 16.11 signature_algorithms null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Microsoft Visual Studio up to 2017 15.9/2019 16.11. Affected by this vulnerability is the function signature_algorithms. Such manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2021-3449. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Visual Studio up to 2017 15.9/2019 16.11 (Programming Tool Software). Affected by this issue is the function signature_algorithms. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability.

The weakness was published 10/12/2021 as confirmed security guidance (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability is handled as CVE-2021-3449. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211827 (Oracle Linux 9 : edk2 (ELSA-2024-12842)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211827). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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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Nessus ID: 211827
Nessus Name: Oracle Linux 9 : edk2 (ELSA-2024-12842)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: fb9fa6b51defd48157eeb207f52181f735d96148

Timelineinfo

03/17/2021 🔍
10/12/2021 +209 days 🔍
10/12/2021 +0 days 🔍
10/12/2021 +0 days 🔍
05/03/2025 +1298 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: dsa-4875
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3449 (🔍)
GCVE (CVE): GCVE-0-2021-3449
GCVE (VulDB): GCVE-100-184250

Entryinfo

Created: 10/12/2021 20:58
Updated: 05/03/2025 05:35
Changes: 10/12/2021 20:58 (12), 10/12/2021 21:02 (31), 10/15/2021 09:21 (6), 10/15/2021 09:24 (19), 06/22/2024 12:33 (16), 11/26/2024 09:59 (2), 05/03/2025 05:35 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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