RedHatRHSA-2023:2570(RHSA-2023:2570) Moderate: krb5 security, bug fix, and enhancement update
6.6 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
9 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
0.027 Low
EPSS
Percentile
90.4%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| RedHat | 9 | s390x | krb5-server | < 1.20.1-8.el9 | krb5-server-1.20.1-8.el9.s390x.rpm |
| RedHat | 9 | aarch64 | krb5-debugsource | < 1.20.1-8.el9 | krb5-debugsource-1.20.1-8.el9.aarch64.rpm |
| RedHat | 9 | aarch64 | krb5-server-ldap | < 1.20.1-8.el9 | krb5-server-ldap-1.20.1-8.el9.aarch64.rpm |
| RedHat | 9 | aarch64 | krb5-libs | < 1.20.1-8.el9 | krb5-libs-1.20.1-8.el9.aarch64.rpm |
| RedHat | 9 | aarch64 | krb5-devel | < 1.20.1-8.el9 | krb5-devel-1.20.1-8.el9.aarch64.rpm |
| RedHat | 9 | ppc64le | krb5-server | < 1.20.1-8.el9 | krb5-server-1.20.1-8.el9.ppc64le.rpm |
| RedHat | 9 | ppc64le | krb5-libs-debuginfo | < 1.20.1-8.el9 | krb5-libs-debuginfo-1.20.1-8.el9.ppc64le.rpm |
| RedHat | 9 | aarch64 | krb5-server | < 1.20.1-8.el9 | krb5-server-1.20.1-8.el9.aarch64.rpm |
| RedHat | 9 | x86_64 | libkadm5 | < 1.20.1-8.el9 | libkadm5-1.20.1-8.el9.x86_64.rpm |
| RedHat | 9 | i686 | krb5-pkinit-debuginfo | < 1.20.1-8.el9 | krb5-pkinit-debuginfo-1.20.1-8.el9.i686.rpm |
Related
6.6 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
9 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
0.027 Low
EPSS
Percentile
90.4%