CVE-2019-6740: (Pwn2Own) Samsung Galaxy S9 ASN.1 Heap-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Samsung Galaxy S9 prior to January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467). 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 ASN.1 parser. When parsing ASN.1 strings, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-7472.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Samsung Galaxy S9. 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 ASN.1 parser. When parsing ASN.1 strings, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-6740?
CVE-2019-6740 is a vulnerability that allows remote attackers to execute arbitrary code on vulnerable installations of Samsung Galaxy S9 prior to January 2019 Security Update.
How severe is CVE-2019-6740?
CVE-2019-6740 has a severity rating of 9.6 (Critical).
How can I exploit CVE-2019-6740?
To exploit CVE-2019-6740, the target must visit a malicious page or open a malicious file.
Is my Samsung Galaxy S9 affected by CVE-2019-6740?
Samsung Galaxy S9 devices prior to the January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467) are vulnerable to CVE-2019-6740.
How do I protect my Samsung Galaxy S9 from CVE-2019-6740?
To protect your Samsung Galaxy S9, make sure to install the January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467) or later.