CVE-2019-15947

MEDIUM

Description

In Bitcoin Core 0.18.0, 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.

References

https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2019-15947

https://gist.github.com/oxagast/50a121b2df32186e0c48411859d5861b

https://github.com/bitcoin/bitcoin/issues/16824

https://security.gentoo.org/glsa/202009-18

Details

Source: MITRE

Published: 2019-09-05

Updated: 2020-09-30

Type: CWE-326

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH