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."
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| mit | kerberos_5 | 1.8 - 1.19.4 | - |
| mit | kerberos_5 | - | - |
| mit | kerberos_5 | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7
Affected Products
22
References
mit / kerberos_5
| - |
| heimdal_project | heimdal | 7.7.1 | - |
| samba | samba | 4.15.12 | - |
| samba | samba | 4.16.0 - 4.16.7 | - |
| samba | samba | 4.17.0 - 4.17.3 | - |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact