WeChat up to 7.0.3 on Android Emoji File libvoipCodec_v7a.so vcodec2_hls_filter input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in WeChat up to 7.0.3 on Android. This affects the function vcodec2_hls_filter of the file libvoipCodec_v7a.so of the component Emoji File Handler. Such manipulation leads to input validation. This vulnerability is listed as CVE-2019-11419. The attack must be carried out locally. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in WeChat up to 7.0.3 on Android (Android App Software). Affected by this issue is the function vcodec2_hls_filter of the file libvoipCodec_v7a.so of the component Emoji File Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

vcodec2_hls_filter in libvoipCodec_v7a.so in the WeChat application through 7.0.3 for Android allows attackers to cause a denial of service (application crash) by replacing an emoji file (under the /sdcard/tencent/MicroMsg directory) with a crafted .wxgf file. The content of the replacement must be derived from the phone's IMEI. The crash occurs upon receiving a message that contains the replaced emoji.

The bug was discovered 05/16/2019. The weakness was presented 05/14/2019 (Website). The advisory is available at exploit-db.com. This vulnerability is handled as CVE-2019-11419 since 04/21/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

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

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Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/21/2019 🔍
05/14/2019 +23 days 🔍
05/15/2019 +1 days 🔍
05/16/2019 +1 days 🔍
06/09/2024 +1851 days 🔍

Sourcesinfo

Advisory: 152947
Status: Not defined

CVE: CVE-2019-11419 (🔍)
GCVE (CVE): GCVE-0-2019-11419
GCVE (VulDB): GCVE-100-135038
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 05/15/2019 09:52
Updated: 06/09/2024 11:59
Changes: 05/15/2019 09:52 (56), 06/12/2020 11:16 (2), 09/19/2023 14:31 (4), 06/09/2024 11:59 (22)
Complete: 🔍
Cache ID: 216::103

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