DEBIAN-CVE-2022-3437
Record from OSV · Published January 12, 2023
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| samba | Debian:13 | 2:4.16.6+dfsg-1 |
| heimdal | Debian:14 | 7.8.git20221115.a6cf945+dfsg-1 |
| samba | Debian:14 | 2:4.16.6+dfsg-1 |
| heimdal | Debian:12 | 7.8.git20221115.a6cf945+dfsg-1 |
| samba | Debian:12 | 2:4.16.6+dfsg-1 |
| heimdal | Debian:13 | 7.8.git20221115.a6cf945+dfsg-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | samba | 0 |
| Debian:14 | heimdal | 0 |
| Debian:14 | samba | 0 |
| Debian:12 | heimdal | 0 |
| Debian:12 | samba | 0 |
| Debian:13 | heimdal | 0 |
Timeline
- Jan 12, 2023 CVE Published
- Oct 15, 2026 CVE Updated
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