CVE-2020-28196high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.
References
https://github.com/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfd
https://lists.debian.org/debian-lts-announce/2020/11/msg00011.html
https://security.gentoo.org/glsa/202011-17
https://www.debian.org/security/2020/dsa-4795
https://security.netapp.com/advisory/ntap-20201202-0001/
https://security.netapp.com/advisory/ntap-20210513-0002/
https://www.oracle.com/security-alerts/cpuApr2021.html
https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E
Details
Source: MITRE
Published: 2020-11-06
Updated: 2021-07-20
Type: CWE-674
Risk Information
CVSS v2
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 152026 | Oracle Database Server Multiple Vulnerabilities (Jul 2021 CPU) | Nessus | Databases | high |
| 151400 | EulerOS Virtualization 3.0.2.2 : krb5 (EulerOS-SA-2021-2141) | Nessus | Huawei Local Security Checks | high |
| 150689 | Oracle Linux 7 : krb5 (ELSA-2021-9294) | Nessus | Oracle Linux Local Security Checks | high |
| 149931 | Oracle Linux 8 : krb5 (ELSA-2021-1593) | Nessus | Oracle Linux Local Security Checks | high |
| 149738 | CentOS 8 : krb5 (CESA-2021:1593) | Nessus | CentOS Local Security Checks | high |
| 149693 | RHEL 8 : krb5 (RHSA-2021:1593) | Nessus | Red Hat Local Security Checks | high |
| 148937 | MySQL 8.0.x < 8.0.24 Multiple Vulnerabilities (Apr 2021 CPU) | Nessus | Databases | medium |
| 148869 | FreeBSD : MySQL -- Multiple vulnerabilities (56ba4513-a1be-11eb-9072-d4c9ef517024) | Nessus | FreeBSD Local Security Checks | high |
| 148075 | EulerOS 2.0 SP5 : krb5 (EulerOS-SA-2021-1685) | Nessus | Huawei Local Security Checks | high |
| 147679 | EulerOS Virtualization 2.9.0 : krb5 (EulerOS-SA-2021-1641) | Nessus | Huawei Local Security Checks | high |
| 147609 | EulerOS Virtualization 3.0.6.6 : krb5 (EulerOS-SA-2021-1487) | Nessus | Huawei Local Security Checks | high |
| 147589 | EulerOS Virtualization 2.9.1 : krb5 (EulerOS-SA-2021-1605) | Nessus | Huawei Local Security Checks | high |
| 147549 | EulerOS Virtualization 3.0.2.6 : krb5 (EulerOS-SA-2021-1414) | Nessus | Huawei Local Security Checks | high |
| 147526 | EulerOS Virtualization for ARM 64 3.0.2.0 : krb5 (EulerOS-SA-2021-1403) | Nessus | Huawei Local Security Checks | high |
| 147109 | EulerOS Virtualization for ARM 64 3.0.6.0 : krb5 (EulerOS-SA-2021-1544) | Nessus | Huawei Local Security Checks | high |
| 146651 | EulerOS 2.0 SP2 : krb5 (EulerOS-SA-2021-1312) | Nessus | Huawei Local Security Checks | high |
| 145721 | EulerOS 2.0 SP8 : krb5 (EulerOS-SA-2021-1149) | Nessus | Huawei Local Security Checks | high |
| 145147 | EulerOS 2.0 SP3 : krb5 (EulerOS-SA-2021-1080) | Nessus | Huawei Local Security Checks | high |
| 144697 | EulerOS 2.0 SP9 : krb5 (EulerOS-SA-2021-1010) | Nessus | Huawei Local Security Checks | high |
| 144688 | EulerOS 2.0 SP9 : krb5 (EulerOS-SA-2021-1029) | Nessus | Huawei Local Security Checks | high |
| 143831 | SUSE SLED15 / SLES15 Security Update : krb5 (SUSE-SU-2020:3377-1) | Nessus | SuSE Local Security Checks | high |
| 143817 | SUSE SLES12 Security Update : krb5 (SUSE-SU-2020:3379-1) | Nessus | SuSE Local Security Checks | high |
| 143731 | SUSE SLES15 Security Update : krb5 (SUSE-SU-2020:3375-1) | Nessus | SuSE Local Security Checks | high |
| 143317 | openSUSE Security Update : krb5 (openSUSE-2020-2062) | Nessus | SuSE Local Security Checks | high |
| 143299 | openSUSE Security Update : krb5 (openSUSE-2020-2037) | Nessus | SuSE Local Security Checks | high |
| 143194 | Debian DSA-4795-1 : krb5 - security update | Nessus | Debian Local Security Checks | high |
| 143177 | Fedora 31 : krb5 (2020-0df38b2843) | Nessus | Fedora Local Security Checks | high |
| 142967 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : Kerberos vulnerability (USN-4635-1) | Nessus | Ubuntu Local Security Checks | high |
| 142930 | GLSA-202011-17 : MIT Kerberos 5: Denial of service | Nessus | Gentoo Local Security Checks | high |
| 142927 | Fedora 32 : krb5 (2020-27b577ab23) | Nessus | Fedora Local Security Checks | high |
| 142624 | Fedora 33 : krb5 (2020-32193cbbe6) | Nessus | Fedora Local Security Checks | high |
| 142616 | Debian DLA-2437-1 : krb5 security update | Nessus | Debian Local Security Checks | high |