Apple Safari up to 12.1.1 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Apple Safari up to 12.1.1. This vulnerability affects unknown code of the component WebKit. This manipulation causes memory corruption. This vulnerability is registered as CVE-2019-8689. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Safari up to 12.1.1 (Web Browser). It has been declared as critical. Affected by this vulnerability is an unknown code of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 07/22/2019 with Google Project Zero as HT210355 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2019-8689. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

A public exploit has been developed by Google Security Research in C++ and been published 2 months after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

Upgrading to version 12.1.2 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 Exploit-DB (47316). Similar entries are available at VDB-138559, VDB-138603, VDB-138604 and VDB-138605. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Google Security Research
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Safari 12.1.2

Timelineinfo

02/18/2019 🔍
07/22/2019 +154 days 🔍
07/22/2019 +0 days 🔍
07/24/2019 +2 days 🔍
08/29/2019 +36 days 🔍
04/05/2025 +2046 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210355
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2019-8689 (🔍)
GCVE (CVE): GCVE-0-2019-8689
GCVE (VulDB): GCVE-100-138625
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/24/2019 15:49
Updated: 04/05/2025 15:05
Changes: 07/24/2019 15:49 (45), 01/05/2020 13:26 (1), 01/05/2020 13:27 (22), 11/07/2023 07:31 (8), 04/05/2025 15:05 (14)
Complete: 🔍
Committer: misc
Cache ID: 216::103

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

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