WebKit/WebkitGTK+ up to 2.16.2 UNIX IPC Layer integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in WebKit and WebkitGTK+ up to 2.16.2. The impacted element is an unknown function of the component UNIX IPC Layer. The manipulation leads to integer overflow. This vulnerability is listed as CVE-2017-1000121. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in WebKit and WebkitGTK+ up to 2.16.2 (Web Browser). It has been rated as critical. This issue affects some unknown processing of the component UNIX IPC Layer. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The UNIX IPC layer in WebKit, including WebKitGTK+ prior to 2.16.3, does not properly validate message size metadata, allowing a compromised secondary process to trigger an integer overflow and subsequent buffer overflow in the UI process. This vulnerability does not affect Apple products.

The bug was discovered 05/19/2017. The weakness was presented 11/01/2017 (Website). It is possible to read the advisory at trac.webkit.org. The identification of this vulnerability is CVE-2017-1000121 since 11/01/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 166 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104928 (EulerOS 2.0 SP2 : webkitgtk3 (EulerOS-SA-2017-1310)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei Local Security Checks and running in the context l.

Upgrading to version 2.16.3 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104928). See VDB-108864 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Integer overflow
CWE: CWE-190 / CWE-189
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: 104928
Nessus Name: EulerOS 2.0 SP2 : webkitgtk3 (EulerOS-SA-2017-1310)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: WebKit/WebkitGTK+ 2.16.3

Timelineinfo

05/19/2017 🔍
11/01/2017 +166 days 🔍
11/01/2017 +0 days 🔍
11/01/2017 +0 days 🔍
11/02/2017 +1 days 🔍
11/24/2017 +22 days 🔍
12/01/2017 +7 days 🔍
01/21/2021 +1147 days 🔍

Sourcesinfo

Advisory: 217126
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-1000121 (🔍)
GCVE (CVE): GCVE-0-2017-1000121
GCVE (VulDB): GCVE-100-108863
See also: 🔍

Entryinfo

Created: 11/02/2017 08:02
Updated: 01/21/2021 12:00
Changes: 11/02/2017 08:02 (68), 12/02/2019 15:33 (3), 01/21/2021 12:00 (3)
Complete: 🔍
Cache ID: 216:10C:103

Be aware that VulDB is the high quality source for vulnerability data.

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