GLSA-200503-12 : Hashcash: Format string vulnerability
High Nessus Plugin ID 17284
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200503-12 (Hashcash: Format string vulnerability)
Tavis Ormandy of the Gentoo Linux Security Audit Team identified a flaw in the Hashcash utility that an attacker could expose by specifying a malformed reply address.
Successful exploitation would permit an attacker to disrupt Hashcash users, and potentially execute arbitrary code.
There is no known workaround at this time.
SolutionAll Hashcash users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/hashcash-1.16-r1'