Vulnerability CVE-2019-11419


Published: 2019-05-14

Description:
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.

Type:

CWE-20

(Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Tencent -> Wechat 

 References:
http://packetstormsecurity.com/files/152947/WeChat-7.0.4-Denial-Of-Service.html
https://awakened1712.github.io/hacking/hacking-wechat-dos/
https://www.exploit-db.com/exploits/46853

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