SB2019090530 - Information disclosure in Bitcoin Core
Published: September 5, 2019 Updated: October 2, 2020
Security Bulletin ID
SB2019090530
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cleartext storage of sensitive information (CVE-ID: CVE-2019-15947)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command.
Remediation
Install update from vendor's website.