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Fedora 33: FEDORA-2020-32193cbbe6 Critical: ASN.1 DoS Fix

fedora
Calendar Grey November 8, 2020
Dist Fedora Esm H88
Fedora 33 introduces a krb5 enhancement addressing a DoS vulnerability in ASN.1 parsing through the implementation of recursion depth restrictions for heightened security.
- Fix CVE-2020-28196 (DoS in ASN.1 parsing due to missing recursion depth checks) - fc32 + fc33 only: pull-up to rawhide

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.

- Fix CVE-2020-28196 (DoS in ASN.1 parsing due to missing recursion depth

checks) - fc32 + fc33 only: pull-up to rawhide

* Thu Nov 5 2020 Robbie Harwood - 1.18.2-29

- Add recursion limit for ASN.1 indefinite lengths (CVE-2020-28196)

* Fri Oct 23 2020 Robbie Harwood - 1.18.2-28

- Fix minor static analysis defects

su -c 'dnf upgrade --advisory FEDORA-2020-32193cbbe6' 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

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

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

Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/

List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines

List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/

Change Log

References

Update Instructions

Severity
critical
Lowest
Low
Medium
High
Critical

Product: Fedora 33
Version: 1.18.2
Release: 29.fc33
Summary: The Kerberos network authentication system

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