Open vSwitch up to 2.15.0 decode_NXAST_RAW_ENCAP use after free

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

Summaryinfo

A vulnerability classified as critical has been found in Open vSwitch up to 2.15.0. This affects the function decode_NXAST_RAW_ENCAP. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2021-36980. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Open vSwitch up to 2.15.0. It has been rated as critical. This issue affects the function decode_NXAST_RAW_ENCAP. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 07/21/2021. The advisory is shared at bugs.chromium.org. The identification of this vulnerability is CVE-2021-36980. Technical details are known, but no exploit is available.

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

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

Productinfo

Name

Version

License

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: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: github.com

Timelineinfo

07/20/2021 🔍
07/21/2021 +1 days 🔍
07/21/2021 +0 days 🔍
05/06/2025 +1385 days 🔍

Sourcesinfo

Advisory: bugs.chromium.org
Status: Confirmed

CVE: CVE-2021-36980 (🔍)
GCVE (CVE): GCVE-0-2021-36980
GCVE (VulDB): GCVE-100-179297

Entryinfo

Created: 07/21/2021 11:54
Updated: 05/06/2025 02:57
Changes: 07/21/2021 11:54 (37), 07/26/2021 07:00 (2), 05/06/2025 02:57 (32)
Complete: 🔍
Cache ID: 216::103

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

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