PT-2021-19399 · Vector 35 · Binary Ninja

Mat Powell · Published 2021-06-10 · Updated 2021-07-01 · CVE-2021-31515

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Vector 35 Binary Ninja version 2.3.2660

Description This issue allows remote attackers to execute arbitrary code on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the parsing of BNDB files due to the lack of proper validation of user-supplied data, resulting in a read past the end of an allocated data structure. An attacker can leverage this to execute code in the context of the current process.

Recommendations For Vector 35 Binary Ninja version 2.3.2660, as a temporary workaround, consider disabling the BNDB file parsing functionality until a patch is available. Restrict access to BNDB files to minimize the risk of exploitation. Avoid using user-supplied data in the affected BNDB file parsing functionality until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-31515

ZDI-21-678

Affected Products

Binary Ninja

References · 5

• https://zerodayinitiative.com/advisories/ZDI-21-678 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-31515 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31515 · Vendor Advisory
• https://binary.ninja/2021/06/03/2.4-release.html#security-advisories · Vendor Advisory
• https://t.me/cvenotify/16834 · Telegram Post