CVE-2022-3437
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Samba
PublishedJan 12, 2023
First seenJan 12, 2023
Weakness typeCWE-122CWE-122
How to fix
Update
- samba samba4.15.11, 4.16.6, 4.17.2 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| samba samba | 4.0.0 ≤ v < 4.15.11, 4.16.0 ≤ v < 4.16.6, 4.17.0 ≤ v < 4.17.2 | 4.15.11, 4.16.6, 4.17.2 |
| fedoraproject fedora | 36, 37 | — |
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