GLSA-201706-21 : nettle: Information disclosure
Medium Nessus Plugin ID 101016
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-201706-21 (nettle: Information disclosure)
It was found that nettle’s RSA and DSA decryption code was vulnerable to cache-related side channel attacks.
See the referenced technical paper “Cache Attacks Enable Bulk Key Recovery on the Cloud” below for details.
An attacker could recover the private key from a co-located virtual-machine instance.
There is no known workaround at this time.
SolutionAll nettle users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/nettle-3.2-r1'