Apple iOS up to 12.x CoreCrypto denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple iOS up to 12.x. The affected element is an unknown function of the component CoreCrypto. The manipulation leads to denial of service. This vulnerability is documented as CVE-2019-8741. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apple iOS up to 12.x (Smartphone Operating System). This issue affects some unknown functionality of the component CoreCrypto. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

A denial of service issue was addressed with improved input validation.

The weakness was released 10/29/2019 by Nicky Mouha with NIST as HT210606 as confirmed security advisory (Website). The advisory is shared at support.apple.com. The public release was coordinated with Apple. The identification of this vulnerability is CVE-2019-8741 since 02/18/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue. The advisory points out:

Processing a large input may lead to a denial of service

Upgrading to version 13.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The security advisory contains the following remark:

A denial of service issue was addressed with improved input validation.

Entries connected to this vulnerability are available at VDB-142353, VDB-142348, VDB-142347 and VDB-142349. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS 13.0

Timelineinfo

02/18/2019 🔍
10/29/2019 +253 days 🔍
10/29/2019 +0 days 🔍
03/01/2020 +124 days 🔍
03/02/2020 +1 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210606
Researcher: Nicky Mouha
Organization: NIST
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-8741 (🔍)
GCVE (CVE): GCVE-0-2019-8741
GCVE (VulDB): GCVE-100-150761
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 03/01/2020 13:33
Updated: 03/02/2020 12:44
Changes: 03/01/2020 13:33 (50), 03/02/2020 12:44 (19)
Complete: 🔍
Cache ID: 216::103

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

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