vulnerability
Ubuntu: (Multiple Advisories) (CVE-2022-42898): Heimdal vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | Nov 5, 2022 | Jan 13, 2023 | Aug 18, 2025 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
Nov 5, 2022
Added
Jan 13, 2023
Modified
Aug 18, 2025
Description
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Solutions
ubuntu-pro-upgrade-krb5-admin-serverubuntu-pro-upgrade-krb5-kdcubuntu-pro-upgrade-krb5-userubuntu-pro-upgrade-libasn1-8-heimdalubuntu-pro-upgrade-libgssapi-krb5-2ubuntu-pro-upgrade-libgssapi3-heimdalubuntu-pro-upgrade-libhdb9-heimdalubuntu-pro-upgrade-libhx509-5-heimdalubuntu-pro-upgrade-libkdb5-10ubuntu-pro-upgrade-libkdb5-7ubuntu-pro-upgrade-libkdb5-8ubuntu-pro-upgrade-libkdb5-9ubuntu-pro-upgrade-libkrb5-26-heimdalubuntu-pro-upgrade-samba
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