VulnerabilityModified
CVE-2021-3671
A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request).
MEDIUM 6.5EPSS 2.18%
Does this matter?
Lower severity and a low EPSS score (2.18%). Track it; it rarely justifies an emergency change on its own.
Description
A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.18% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- samba/samba · debian/debian linux · netapp/management services for element software · netapp/management services for netapp hci · netapp/ontap select deploy administration utility
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C
- https://bugzilla.samba.org/show_bug.cgi?id=14770%2C
- https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00034.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221215-0002/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0008/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5287Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C
- https://bugzilla.samba.org/show_bug.cgi?id=14770%2C
- https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00034.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221215-0002/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0008/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5287Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.