Vulnerability · Published Oct 24, 2023 · Assigned by redhat
CVE-2023-5568Samba: heap buffer overflow with freshness tokens in the heimdal kdc
Medium 5.9
In plain English
A medium-severity heap buffer overflow in Red Hat Enterprise Linux 6 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)2.1%top 18.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | samba | 2:4.19.2+dfsg-1 | DEBIAN-CVE-2023-5568 |
| Debian:14 | samba | 2:4.19.2+dfsg-1 | DEBIAN-CVE-2023-5568 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Storage 3 | see references |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-5568 vdb-entry, x_refsource_REDHAT
- RHBZ#2245174 issue-tracking, x_refsource_REDHAT
- https://bugzilla.samba.org/show_bug.cgi?id=15491
- https://www.samba.org/samba/history/samba-4.19.2.html
- https://security.netapp.com/advisory/ntap-20231124-0007/ x_transferred