The remote Scientific Linux host is missing one or more security
Network Security Services (NSS) is a set of libraries designed to
support the development of security-enabled client and server
It was found that the Malaysia-based Digicert Sdn. Bhd. subordinate
Certificate Authority (CA) issued HTTPS certificates with weak keys.
This update renders any HTTPS certificates signed by that CA as
untrusted. This covers all uses of the certificates, including SSL,
S/MIME, and code signing. Note: Digicert Sdn. Bhd. is not the same
company as found at digicert.com.
Note: This fix only applies to applications using the NSS Builtin
Object Token. It does not render the certificates untrusted for
applications that use the NSS library, but do not use the NSS Builtin
This update also fixes the following bug on Scientific Linux 5 :
- When using mod_nss with the Apache HTTP Server, a bug in
NSS on Scientific Linux 5 resulted in file descriptors
leaking each time the Apache HTTP Server was restarted
with the 'service httpd reload' command. This could have
prevented the Apache HTTP Server from functioning
properly if all available file descriptors were
For Scientific Linux 6, these updated packages upgrade NSS to version
3.12.10. As well, they upgrade NSPR (Netscape Portable Runtime) to
version 4.8.8 and nss-util to version 3.12.10 on Scientific Linux 6,
as required by the NSS update.
All NSS users should upgrade to these updated packages, which correct
this issue. After installing the update, applications using NSS must
be restarted for the changes to take effect. In addition, on
Scientific Linux 6, applications using NSPR and nss-util must also be
See also :
Update the affected packages.
Risk factor :