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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bitcoin | 31.0-2.1 | openSUSE-SU-2026:11073-1 |
| openSUSE Leap 16.0 | bitcoin | 27.1-bp160.2.1 | openSUSE-SU-2026:21149-1 |
Advisories 2
- openSUSE-SU-2026:21149-1 Security update for bitcoin SUSE / openSUSE Security Updates · Jun 30, 2026
- openSUSE-SU-2026:11073-1 bitcoin-qt6-31.0-2.1 on GA media SUSE / openSUSE Security Updates · Jun 24, 2026