CVE-2021-37750
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-37750
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:3576
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-37750.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.19.3-1 | |
| sles | affected | | |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 1.18.3-7 |
| debian | bullseye | fixed | 1.18.3-6+deb11u1 |
| debian | forky | fixed | 1.18.3-7 |
| debian | sid | fixed | 1.18.3-7 |
| debian | trixie | fixed | 1.18.3-7 |
References
Verify integrity in audit chain (admin only). AS-IS.