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Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade hashcash | Jul 30, 2024 | Mar 6, 2005 |
| Freebsd | — | Upgrade hashcash | Dec 10, 2025 | Apr 2, 2005 |
| Gentoo Linux | — | Upgrade net-misc/hashcash. | Oct 30, 2017 | Mar 6, 2005 |
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