Description
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.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | hashcash | 1.17-1 | — |
| Debian 13 | hashcash | 1.17-1 | — |
| Debian 12 | hashcash | 1.17-1 | — |
References
- 14487 third-party-advisory
- GLSA-200503-12 vendor-advisory
- http://bugs.gentoo.org/show_bug.cgi?id=83541