9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.015 Low
EPSS
Percentile
86.5%
Medium
Canonical Ubuntu
It was discovered that Heimdal incorrectly handled certain SPNEGO tokens. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2021-44758) Evgeny Legerov discovered that Heimdal incorrectly handled memory when performing certain DES decryption operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-3437) Greg Hudson discovered that Kerberos PAC implementation used in Heimdal incorrectly handled certain parsing operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-42898) It was discovered that Heimdalβs KDC did not properly handle certain error conditions. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-44640) Update Instructions: Run sudo pro fix USN-5800-1
to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libhcrypto4-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libwind0-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libroken18-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libgssapi3-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-kcm β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libhdb9-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libasn1-8-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libsl0-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libkadm5clnt7-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-kdc β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libkdc2-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-servers β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libheimntlm0-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-docs β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libheimbase1-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libkrb5-26-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libotp0-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-dev β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libkafs0-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libhx509-5-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-multidev β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libkadm5srv8-heimdal β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 heimdal-clients β 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
CVEs contained in this USN include: CVE-2021-44758, CVE-2022-3437, CVE-2022-42898, CVE-2022-44640.
Severity is medium unless otherwise noted.
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
β’ Bionic Stemcells
* Upgrade 1.x versions to 1.171 or greater
* Upgrade all versions to 0.349.0 or greater
2023-02-02: Initial vulnerability report published.
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.015 Low
EPSS
Percentile
86.5%