CVE-2023-5568: Heap buffer overflow with freshness tokens in the heimdal kdc
First published: Thu Oct 19 2023(Updated: )
A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/samba | <4.19.2 | 4.19.2 |
| Samba Samba | <4.19.2 |
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Reference Links
- https://www.samba.org/samba/history/samba-4.19.2.html
- https://bugzilla.samba.org/show_bug.cgi?id=15491
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2245175
- https://bugzilla.redhat.com/show_bug.cgi?id=2245174
- https://access.redhat.com/security/cve/CVE-2023-5568
- https://security.netapp.com/advisory/ntap-20231124-0007/
Frequently Asked Questions
What is CVE-2023-5568?
CVE-2023-5568 is a heap buffer overflow vulnerability in the heimdal kdc component of Samba.
What is the severity of CVE-2023-5568?
The severity of CVE-2023-5568 is medium (CVSS score of 6.5).
How can a remote attacker exploit CVE-2023-5568?
A remote, authenticated attacker can exploit CVE-2023-5568 to cause a denial of service.
Which software versions are affected by CVE-2023-5568?
Versions up to exclusive 4.19.2 of Samba are affected by CVE-2023-5568.
Where can I find more information about CVE-2023-5568?
You can find more information about CVE-2023-5568 at the following references: [Red Hat Security Advisory](https://access.redhat.com/security/cve/CVE-2023-5568), [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi?id=2245174), [Samba Bugzilla](https://bugzilla.samba.org/show_bug.cgi?id=15491).
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