WAVM up to 2018-07-26 WebAssembly Virtual Machine popAndValidateOperand memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in WAVM up to 2018-07-26 and classified as critical. The affected element is the function FunctionValidationContext::popAndValidateOperand of the component WebAssembly Virtual Machine. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2018-16767. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in WAVM up to 2018-07-26. This vulnerability affects the function FunctionValidationContext::popAndValidateOperand of the component WebAssembly Virtual Machine. 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. CVE summarizes:

In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service (application crash) or possibly have unspecified other impact because of an unspecified "heap-buffer-overflow" condition in FunctionValidationContext::popAndValidateOperand.

The bug was discovered 07/26/2018. The weakness was presented 09/10/2018 (Website). The advisory is available at github.com. This vulnerability was named CVE-2018-16767 since 09/09/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 46 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-123781, VDB-123780, VDB-123779 and VDB-123777 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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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: 🔍
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/26/2018 🔍
09/09/2018 +44 days 🔍
09/10/2018 +1 days 🔍
09/10/2018 +0 days 🔍
09/10/2018 +0 days 🔍
05/07/2023 +1700 days 🔍

Sourcesinfo

Advisory: 97
Status: Not defined

CVE: CVE-2018-16767 (🔍)
GCVE (CVE): GCVE-0-2018-16767
GCVE (VulDB): GCVE-100-123778
See also: 🔍

Entryinfo

Created: 09/10/2018 07:34
Updated: 05/07/2023 16:44
Changes: 09/10/2018 07:34 (58), 03/22/2020 08:18 (1), 05/07/2023 16:44 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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