VDB-172173 · CVE-2020-27899 · GCVE-0-2020-27899

Apple iOS/iPadOS up to 14.1 use after free

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.
5.1	$5k-$25k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iOS and iPadOS up to 14.1. Affected by this issue is some unknown functionality. Performing a manipulation results in use after free. This vulnerability was named CVE-2020-27899. The attack needs to be approached locally. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple iOS and iPadOS up to 14.1 (Smartphone Operating System). This affects an unknown functionality. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 04/03/2021. This vulnerability is uniquely identified as CVE-2020-27899. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/03/2021). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 14.4 eliminates this vulnerability.

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Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

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: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS/iPadOS 14.4

Timelineinfo

10/27/2020 🔍
04/03/2021 +157 days 🔍
04/03/2021 +0 days 🔍
04/08/2021 +5 days 🔍

Sourcesinfo

Vendor: apple.com

Status: Confirmed

CVE: CVE-2020-27899 (🔍)
GCVE (CVE): GCVE-0-2020-27899
GCVE (VulDB): GCVE-100-172173
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 04/03/2021 08:39
Updated: 04/08/2021 09:53
Changes: 04/03/2021 08:39 (35), 04/03/2021 08:40 (3), 04/08/2021 09:53 (2)
Complete: 🔍
Cache ID: 216::103