02/07/26 10:13 GbcCcnsG
Updated glibc packages fix vulnerabilities in resolver
URLﾘﾝｸ(rhn.redhat.com)
> A buffer overflow vulnerability has been found in the way the glibc
> resolver handles the resolution of network names and addresses via DNS (as
> per Internet RFC 1011). Version 2.2.5 of glibc and earlier versions are
> affected. A system would be vulnerable to this issue if the
> "networks" database in /etc/nsswitch.conf includes the "dns" entry. By
> default, Red Hat Linux ships with "networks" set to "files" and
> is therefore not vulnerable to this issue. (CAN-2002-0684)
>
> A second, related, issue is a bug in the glibc-compat packages, which
> provide compatibility for applications compiled against glibc version
> 2.0.x. Applications compiled against this version (such as those
> distributed with early Red Hat Linux releases 5.0, 5.1, and 5.2) could also
> be vulnerable to this issue. (CAN-2002-0651)
>
> These errata packages for Red Hat Linux 7.1 and 7.2 on the Itanium
> architecture also include a fix for the strncpy implementation in some
> boundary cases.