GLSA-201706-22 : libksba: Denial of Service and information disclosure
Medium Nessus Plugin ID 101017
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-201706-22 (libksba: Denial of Service and information disclosure)
It was found that an unproportionate amount of memory is allocated when parsing crafted certificates in libskba, which may lead to Denial of Service condition.
Moreover in libksba 1.3.4, allocated memory is uninitialized and could potentially contain sensitive data left in freed memory block.
A remote attacker, able to interact with an libksba-based application, could possibly obtain sensitive information or cause a Denial of Service condition.
There is no known workaround at this time.
SolutionAll libksba users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libksba-1.3.5'