Buffer overflow in Mi Mi6 Browser
CVE-2019-6743
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Xiaomi Mi6 Browser prior to 10.4.0. 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 WebAssembly.Instance method. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-7466.
Vulnerability class: Buffer Overflow
EPSS: 0.024 (83.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mi Mi6_browser
- Xiaomi Browser — versions prior to 10.4.0
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-6743?
- CVE-2019-6743 is a high-severity vulnerability in Mi Mi6 Browser, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2019-06-03.
- How severe is CVE-2019-6743?
- High severity. CVSS v3 base score is 8.8 out of 10.