🛡️ CVE-2022-3437
🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-122 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-122
Public Exploit ✅ No
Source NVD
Published 2023-01-12
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
fedora — —
samba 4.17.0 4.17.2

References

Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2137774
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2137774

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