Oracle Communications Cloud Native Core Network Function Cloud Native Environment CNE buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.6$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as very critical, was found in Oracle Communications Cloud Native Core Network Function Cloud Native Environment 22.2.0. Affected by this vulnerability is an unknown functionality of the component CNE. Such manipulation leads to an unknown weakness. This vulnerability is listed as CVE-2021-3177. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Oracle Communications Cloud Native Core Network Function Cloud Native Environment 22.2.0 (Cloud Software). Affected by this issue is some unknown functionality of the component CNE. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was presented 07/19/2022 as Oracle Critical Patch Update Advisory - July 2022. The advisory is shared for download at oracle.com. This vulnerability is handled as CVE-2021-3177. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 12/18/2025).

As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 236633 (Alibaba Cloud Linux 3 : 0112: python27:2.7 (ALINUX3-SA-2022:0112)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236633). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Buffer overflow
CWE: CWE-120 / CWE-119
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: 236633
Nessus Name: Alibaba Cloud Linux 3 : 0112: python27:2.7 (ALINUX3-SA-2022:0112)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

01/19/2021 🔍
07/19/2022 +545 days 🔍
07/19/2022 +0 days 🔍
07/20/2022 +1 days 🔍
12/18/2025 +1247 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - July 2022
Status: Confirmed

CVE: CVE-2021-3177 (🔍)
GCVE (CVE): GCVE-0-2021-3177
GCVE (VulDB): GCVE-100-204248

Entryinfo

Created: 07/20/2022 08:16
Updated: 12/18/2025 16:32
Changes: 07/20/2022 08:16 (39), 08/07/2022 09:49 (3), 08/07/2022 09:50 (19), 05/19/2025 19:40 (16), 12/18/2025 16:32 (1)
Complete: 🔍
Cache ID: 216:EEA:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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