The GNU C library is the standard C library used by Gentoo Linux systems.
A vulnerability was discovered in the GNU C Library functions xdr_bytes and xdr_string.
A remote attacker, by sending a crafted UDP packet, could cause a Denial of Service condition.
There is no known workaround at this time.
All GNU C Library users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.26.0"