CVE-2018-5709
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-5709
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-5709.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201806-3
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.16.1-1 | |
| sles | affected | | |
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | affected | |
| debian | sid | affected | |
| debian | trixie | affected | |
References
Verify integrity in audit chain (admin only). AS-IS.