VDB-168452 · CVE-2020-11984 · Nessus 210018

Oracle ZFS Storage Appliance Kit 8.8 Operating System Image buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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-$25k	0.00

Summaryinfo

A vulnerability was found in Oracle ZFS Storage Appliance Kit 8.8 and classified as very critical. This impacts an unknown function of the component Operating System Image. Such manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2020-11984. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle ZFS Storage Appliance Kit 8.8. It has been rated as very critical. Affected by this issue is an unknown code of the component Operating System Image. 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 disclosed 01/20/2021 as Oracle Critical Patch Update Advisory - January 2021. The advisory is shared for download at oracle.com. This vulnerability is handled as CVE-2020-11984. 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 11/01/2024).

As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 210018 (Amazon Linux AMI : httpd24 (ALAS-2024-1951)), 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 (210018). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Oracle

Name

ZFS Storage Appliance Kit

Version

License

commercial

Website

Vendor: https://www.oracle.com

CPE 2.3info

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CPE 2.2info

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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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 210018
Nessus Name: Amazon Linux AMI : httpd24 (ALAS-2024-1951)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

04/21/2020 🔍
01/20/2021 +274 days 🔍
01/20/2021 +0 days 🔍
01/20/2021 +0 days 🔍
11/01/2024 +1381 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - January 2021
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-11984 (🔍)
GCVE (CVE): GCVE-0-2020-11984
GCVE (VulDB): GCVE-100-168452

Entryinfo

Created: 01/20/2021 19:48
Updated: 11/01/2024 12:38
Changes: 01/20/2021 19:48 (38), 02/18/2021 01:10 (6), 02/18/2021 01:14 (17), 11/01/2024 12:38 (17)
Complete: 🔍
Cache ID: 216::103