|CVSS SCORE||4.3, (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)|
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Tencent WeChat. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the WXAM decoder. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
This vulnerability is being disclosed publicly without a patch in accordance with the ZDI 120-day timeline.
12/30/21 – ZDI reported the vulnerability to the vendor.
|CREDIT||Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative