RedHat: RHSA-2023-2570:01 Moderate: krb5 security, bug fix, | Linux...
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: krb5 security, bug fix, and enhancement update
Advisory ID:       RHSA-2023:2570-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:2570
Issue date:        2023-05-09
CVE Names:         CVE-2020-17049 
=====================================================================

1. Summary:

An update for krb5 is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64

3. Description:

Kerberos is a network authentication system, which can improve the security
of your network by eliminating the insecure practice of sending passwords
over the network in unencrypted form. It allows clients and servers to
authenticate to each other with the help of a trusted third party, the
Kerberos key distribution center (KDC).

The following packages have been upgraded to a later upstream version: krb5
(1.20.1). (BZ#2016312)

Security Fix(es):

* Kerberos: delegation constrain bypass in S4U2Proxy (CVE-2020-17049)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 9.2 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the updated packages, running Kerberos services (krb5kdc,
kadmin, and kprop) will be restarted automatically.

5. Bugs fixed (https://bugzilla.redhat.com/):

1956994 - CVE-2020-17049 krb5: Kerberos: delegation constrain bypass in S4U2Proxy [rhel-9]
2016312 - Rebase krb5 to latest upstream release 1.20 [rhel-9]
2025721 - CVE-2020-17049 Kerberos: delegation constrain bypass in S4U2Proxy
2063838 - Mishandling of CMS_verify() errors in PKINIT plugin
2068535 - Modify supported_enctypes (kdc.conf) and add aes256/128-sha2 enctypes due to FIPS
2121099 - Incorrect password expiration handling [rhel-9]
2151513 - upstream test t_discover_uri.py failed [rhel-9.2]
2159643 - Cannot set root as file owner using install in Mock build environment
2162461 - creating of user principal failed with Cryptosystem internal error when the aes256-cts is used (FIPS)
2165827 - CVE-2022-37967: MS-PAC extended KDC signature [rhel-9]
2166603 - KDB: double free in kdb5_create.c:add_principal()
2169985 - add krb5 principal failed with specific datetime string in pwexpire option (s390x, coredump)

6. Package List:

Red Hat Enterprise Linux AppStream (v. 9):

aarch64:
krb5-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-debugsource-1.20.1-8.el9.aarch64.rpm
krb5-devel-1.20.1-8.el9.aarch64.rpm
krb5-libs-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-server-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.aarch64.rpm
libkadm5-debuginfo-1.20.1-8.el9.aarch64.rpm

ppc64le:
krb5-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-debugsource-1.20.1-8.el9.ppc64le.rpm
krb5-devel-1.20.1-8.el9.ppc64le.rpm
krb5-libs-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-server-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.ppc64le.rpm
libkadm5-debuginfo-1.20.1-8.el9.ppc64le.rpm

s390x:
krb5-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-debugsource-1.20.1-8.el9.s390x.rpm
krb5-devel-1.20.1-8.el9.s390x.rpm
krb5-libs-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-server-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.s390x.rpm
libkadm5-debuginfo-1.20.1-8.el9.s390x.rpm

x86_64:
krb5-debuginfo-1.20.1-8.el9.i686.rpm
krb5-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-debugsource-1.20.1-8.el9.i686.rpm
krb5-debugsource-1.20.1-8.el9.x86_64.rpm
krb5-devel-1.20.1-8.el9.i686.rpm
krb5-devel-1.20.1-8.el9.x86_64.rpm
krb5-libs-debuginfo-1.20.1-8.el9.i686.rpm
krb5-libs-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.i686.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-server-debuginfo-1.20.1-8.el9.i686.rpm
krb5-server-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.i686.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.i686.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.x86_64.rpm
libkadm5-debuginfo-1.20.1-8.el9.i686.rpm
libkadm5-debuginfo-1.20.1-8.el9.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 9):

Source:
krb5-1.20.1-8.el9.src.rpm

aarch64:
krb5-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-debugsource-1.20.1-8.el9.aarch64.rpm
krb5-libs-1.20.1-8.el9.aarch64.rpm
krb5-libs-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-pkinit-1.20.1-8.el9.aarch64.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-server-1.20.1-8.el9.aarch64.rpm
krb5-server-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-server-ldap-1.20.1-8.el9.aarch64.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.aarch64.rpm
krb5-workstation-1.20.1-8.el9.aarch64.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.aarch64.rpm
libkadm5-1.20.1-8.el9.aarch64.rpm
libkadm5-debuginfo-1.20.1-8.el9.aarch64.rpm

ppc64le:
krb5-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-debugsource-1.20.1-8.el9.ppc64le.rpm
krb5-libs-1.20.1-8.el9.ppc64le.rpm
krb5-libs-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-pkinit-1.20.1-8.el9.ppc64le.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-server-1.20.1-8.el9.ppc64le.rpm
krb5-server-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-server-ldap-1.20.1-8.el9.ppc64le.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.ppc64le.rpm
krb5-workstation-1.20.1-8.el9.ppc64le.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.ppc64le.rpm
libkadm5-1.20.1-8.el9.ppc64le.rpm
libkadm5-debuginfo-1.20.1-8.el9.ppc64le.rpm

s390x:
krb5-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-debugsource-1.20.1-8.el9.s390x.rpm
krb5-libs-1.20.1-8.el9.s390x.rpm
krb5-libs-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-pkinit-1.20.1-8.el9.s390x.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-server-1.20.1-8.el9.s390x.rpm
krb5-server-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-server-ldap-1.20.1-8.el9.s390x.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.s390x.rpm
krb5-workstation-1.20.1-8.el9.s390x.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.s390x.rpm
libkadm5-1.20.1-8.el9.s390x.rpm
libkadm5-debuginfo-1.20.1-8.el9.s390x.rpm

x86_64:
krb5-debuginfo-1.20.1-8.el9.i686.rpm
krb5-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-debugsource-1.20.1-8.el9.i686.rpm
krb5-debugsource-1.20.1-8.el9.x86_64.rpm
krb5-libs-1.20.1-8.el9.i686.rpm
krb5-libs-1.20.1-8.el9.x86_64.rpm
krb5-libs-debuginfo-1.20.1-8.el9.i686.rpm
krb5-libs-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-pkinit-1.20.1-8.el9.i686.rpm
krb5-pkinit-1.20.1-8.el9.x86_64.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.i686.rpm
krb5-pkinit-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-server-1.20.1-8.el9.i686.rpm
krb5-server-1.20.1-8.el9.x86_64.rpm
krb5-server-debuginfo-1.20.1-8.el9.i686.rpm
krb5-server-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-server-ldap-1.20.1-8.el9.i686.rpm
krb5-server-ldap-1.20.1-8.el9.x86_64.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.i686.rpm
krb5-server-ldap-debuginfo-1.20.1-8.el9.x86_64.rpm
krb5-workstation-1.20.1-8.el9.x86_64.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.i686.rpm
krb5-workstation-debuginfo-1.20.1-8.el9.x86_64.rpm
libkadm5-1.20.1-8.el9.i686.rpm
libkadm5-1.20.1-8.el9.x86_64.rpm
libkadm5-debuginfo-1.20.1-8.el9.i686.rpm
libkadm5-debuginfo-1.20.1-8.el9.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2020-17049
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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RedHat: RHSA-2023-2570:01 Moderate: krb5 security, bug fix,

An update for krb5 is now available for Red Hat Enterprise Linux 9

Summary

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).
The following packages have been upgraded to a later upstream version: krb5 (1.20.1). (BZ#2016312)
Security Fix(es):
* Kerberos: delegation constrain bypass in S4U2Proxy (CVE-2020-17049)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes linked from the References section.



Summary


Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, running Kerberos services (krb5kdc, kadmin, and kprop) will be restarted automatically.

References

https://access.redhat.com/security/cve/CVE-2020-17049 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 9):
aarch64: krb5-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-debugsource-1.20.1-8.el9.aarch64.rpm krb5-devel-1.20.1-8.el9.aarch64.rpm krb5-libs-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-server-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-workstation-debuginfo-1.20.1-8.el9.aarch64.rpm libkadm5-debuginfo-1.20.1-8.el9.aarch64.rpm
ppc64le: krb5-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-debugsource-1.20.1-8.el9.ppc64le.rpm krb5-devel-1.20.1-8.el9.ppc64le.rpm krb5-libs-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-server-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-workstation-debuginfo-1.20.1-8.el9.ppc64le.rpm libkadm5-debuginfo-1.20.1-8.el9.ppc64le.rpm
s390x: krb5-debuginfo-1.20.1-8.el9.s390x.rpm krb5-debugsource-1.20.1-8.el9.s390x.rpm krb5-devel-1.20.1-8.el9.s390x.rpm krb5-libs-debuginfo-1.20.1-8.el9.s390x.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.s390x.rpm krb5-server-debuginfo-1.20.1-8.el9.s390x.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.s390x.rpm krb5-workstation-debuginfo-1.20.1-8.el9.s390x.rpm libkadm5-debuginfo-1.20.1-8.el9.s390x.rpm
x86_64: krb5-debuginfo-1.20.1-8.el9.i686.rpm krb5-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-debugsource-1.20.1-8.el9.i686.rpm krb5-debugsource-1.20.1-8.el9.x86_64.rpm krb5-devel-1.20.1-8.el9.i686.rpm krb5-devel-1.20.1-8.el9.x86_64.rpm krb5-libs-debuginfo-1.20.1-8.el9.i686.rpm krb5-libs-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.i686.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-server-debuginfo-1.20.1-8.el9.i686.rpm krb5-server-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.i686.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-workstation-debuginfo-1.20.1-8.el9.i686.rpm krb5-workstation-debuginfo-1.20.1-8.el9.x86_64.rpm libkadm5-debuginfo-1.20.1-8.el9.i686.rpm libkadm5-debuginfo-1.20.1-8.el9.x86_64.rpm
Red Hat Enterprise Linux BaseOS (v. 9):
Source: krb5-1.20.1-8.el9.src.rpm
aarch64: krb5-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-debugsource-1.20.1-8.el9.aarch64.rpm krb5-libs-1.20.1-8.el9.aarch64.rpm krb5-libs-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-pkinit-1.20.1-8.el9.aarch64.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-server-1.20.1-8.el9.aarch64.rpm krb5-server-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-server-ldap-1.20.1-8.el9.aarch64.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.aarch64.rpm krb5-workstation-1.20.1-8.el9.aarch64.rpm krb5-workstation-debuginfo-1.20.1-8.el9.aarch64.rpm libkadm5-1.20.1-8.el9.aarch64.rpm libkadm5-debuginfo-1.20.1-8.el9.aarch64.rpm
ppc64le: krb5-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-debugsource-1.20.1-8.el9.ppc64le.rpm krb5-libs-1.20.1-8.el9.ppc64le.rpm krb5-libs-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-pkinit-1.20.1-8.el9.ppc64le.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-server-1.20.1-8.el9.ppc64le.rpm krb5-server-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-server-ldap-1.20.1-8.el9.ppc64le.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.ppc64le.rpm krb5-workstation-1.20.1-8.el9.ppc64le.rpm krb5-workstation-debuginfo-1.20.1-8.el9.ppc64le.rpm libkadm5-1.20.1-8.el9.ppc64le.rpm libkadm5-debuginfo-1.20.1-8.el9.ppc64le.rpm
s390x: krb5-debuginfo-1.20.1-8.el9.s390x.rpm krb5-debugsource-1.20.1-8.el9.s390x.rpm krb5-libs-1.20.1-8.el9.s390x.rpm krb5-libs-debuginfo-1.20.1-8.el9.s390x.rpm krb5-pkinit-1.20.1-8.el9.s390x.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.s390x.rpm krb5-server-1.20.1-8.el9.s390x.rpm krb5-server-debuginfo-1.20.1-8.el9.s390x.rpm krb5-server-ldap-1.20.1-8.el9.s390x.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.s390x.rpm krb5-workstation-1.20.1-8.el9.s390x.rpm krb5-workstation-debuginfo-1.20.1-8.el9.s390x.rpm libkadm5-1.20.1-8.el9.s390x.rpm libkadm5-debuginfo-1.20.1-8.el9.s390x.rpm
x86_64: krb5-debuginfo-1.20.1-8.el9.i686.rpm krb5-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-debugsource-1.20.1-8.el9.i686.rpm krb5-debugsource-1.20.1-8.el9.x86_64.rpm krb5-libs-1.20.1-8.el9.i686.rpm krb5-libs-1.20.1-8.el9.x86_64.rpm krb5-libs-debuginfo-1.20.1-8.el9.i686.rpm krb5-libs-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-pkinit-1.20.1-8.el9.i686.rpm krb5-pkinit-1.20.1-8.el9.x86_64.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.i686.rpm krb5-pkinit-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-server-1.20.1-8.el9.i686.rpm krb5-server-1.20.1-8.el9.x86_64.rpm krb5-server-debuginfo-1.20.1-8.el9.i686.rpm krb5-server-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-server-ldap-1.20.1-8.el9.i686.rpm krb5-server-ldap-1.20.1-8.el9.x86_64.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.i686.rpm krb5-server-ldap-debuginfo-1.20.1-8.el9.x86_64.rpm krb5-workstation-1.20.1-8.el9.x86_64.rpm krb5-workstation-debuginfo-1.20.1-8.el9.i686.rpm krb5-workstation-debuginfo-1.20.1-8.el9.x86_64.rpm libkadm5-1.20.1-8.el9.i686.rpm libkadm5-1.20.1-8.el9.x86_64.rpm libkadm5-debuginfo-1.20.1-8.el9.i686.rpm libkadm5-debuginfo-1.20.1-8.el9.x86_64.rpm
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Severity
Advisory ID: RHSA-2023:2570-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:2570
Issued Date: : 2023-05-09
CVE Names: CVE-2020-17049

Topic

An update for krb5 is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.


Topic


 

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64


Bugs Fixed

1956994 - CVE-2020-17049 krb5: Kerberos: delegation constrain bypass in S4U2Proxy [rhel-9]

2016312 - Rebase krb5 to latest upstream release 1.20 [rhel-9]

2025721 - CVE-2020-17049 Kerberos: delegation constrain bypass in S4U2Proxy

2063838 - Mishandling of CMS_verify() errors in PKINIT plugin

2068535 - Modify supported_enctypes (kdc.conf) and add aes256/128-sha2 enctypes due to FIPS

2121099 - Incorrect password expiration handling [rhel-9]

2151513 - upstream test t_discover_uri.py failed [rhel-9.2]

2159643 - Cannot set root as file owner using install in Mock build environment

2162461 - creating of user principal failed with Cryptosystem internal error when the aes256-cts is used (FIPS)

2165827 - CVE-2022-37967: MS-PAC extended KDC signature [rhel-9]

2166603 - KDB: double free in kdb5_create.c:add_principal()

2169985 - add krb5 principal failed with specific datetime string in pwexpire option (s390x, coredump)


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