Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Fedora 25: FEDORA-2017-56e23bc2b5 Moderate: krb5 Authentication Update

fedora
Calendar Grey September 22, 2017
Scroller Fedora
Boost your Fedora 25 environment's defense by applying the latest krb5 patch for improved access control and threat mitigation.
- Prevent applications from accidentally implementing CVE-2017-11462 (double free if sec_context is copied)

Summary

Kerberos V5 is a trusted-third-party network authentication system,

which can improve your network's security by eliminating the insecure

practice of sending passwords over the network in unencrypted form.

- Prevent applications from accidentally implementing CVE-2017-11462 (double

free if sec_context is copied). - fc26+: Add ccselect hostrealm module for

ccache selection based on service hostname.

[ 1 ] Bug #1488873 - CVE-2017-11462 krb5: Automatic sec context deletion could lead to double-free

https://bugzilla.redhat.com/show_bug.cgi?id=1488873

su -c 'dnf upgrade krb5' at the command line.

For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

package-announce mailing list -- package-announce@lists.fedoraproject.org

To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org

Change Log

References

Update Instructions

Severity
important
Lowest
Low
Medium
High
Critical

Product: Fedora 25
Version: 1.14.4
Release: 9.fc25
Summary: The Kerberos network authentication system

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.