CVE-2023-36054
krb5 - security update
6.5
MEDIUM
CVSS 3.1
EPSS 1.1%
Description
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.
How to fix CVE-2023-36054
To remediate CVE-2023-36054, upgrade the affected package to a fixed version below.
- —upgrade to 1.20.2-r0 or later
- —upgrade to 1.18.3-6+deb11u4 or later
- —upgrade to 1.17-3+deb10u6 or later
Is CVE-2023-36054 being exploited?
Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.20.2-r0
- from 0, < 1.18.3-6+deb11u4
- from 0, < 1.17-3+deb10u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |