An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
Integer Overflow or Wraparound
Integer Overflow or Wraparound
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| Package | Type | OS Name | OS Version | Affected Ranges | Fix Versions |
|---|---|---|---|---|---|
| debian/krb5 | deb | debian | 12 | >=1.20.1-2+deb12u1 | Not yet available |
| debian/krb5 | deb | debian | 10 | >=1.17-3+deb10u4 | Not yet available |
| debian/krb5 | deb | debian | 13 | >=1.20.1-6 | Not yet available |
| debian/krb5 | deb | debian | unstable | >=1.20.1-6 | Not yet available |
| debian/krb5 | deb | debian | 11 | >=1.18.3-6+deb11u4 | Not yet available |
Severity and metrics
No CVSS data available from this source.
3.9
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3.9
2.8