Advisory Details

June 10th, 2021

Vector 35 Binary Ninja BNDB File Parsing Use-After-Free Remote Code Execution Vulnerability

ZDI-21-677
ZDI-CAN-13670

CVE ID CVE-2021-31516
CVSS SCORE 7.8, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Vector 35
AFFECTED PRODUCTS Binary Ninja
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Vector 35 Binary Ninja. 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 parsing of BNDB files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Vector 35 has issued an update to correct this vulnerability. More details can be found at:
https://binary.ninja/2021/06/03/2.4-release.html#security-advisories
DISCLOSURE TIMELINE
  • 2021-04-27 - Vulnerability reported to vendor
  • 2021-06-10 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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