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ALPINE-CVE-2022-3437

ALPINE-CVE-2022-3437 PUBLISHED CVSS 6.5 MEDIUM

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.

Risk Scores

CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.20heimdal*, 7.7.0-r5, 1.2.1-r2
Alpine:v3.15heimdal1.4-r7, 1.2.1-r1, 1.2.1-r0
Alpine:v3.19heimdal*, 7.5.0-r3, 1.4-r3
Alpine:v3.18samba3.6.13-r1, 3.6.15-r0, 3.6.16-r0
Alpine:v3.14heimdal7.7.0-r4, 7.7.0-r3, 7.7.0-r2
Alpine:v3.15samba4.5.1-r0, 4.5.3-r1, 4.5.4-r0
Alpine:v3.21heimdal7.4.0-r1, 1.4-r11, 1.4-r2
Alpine:v3.17heimdal1.3.3-r0, 1.4-r1, 1.4-r10
Alpine:v3.17samba4.13.2-r0, 4.13.3-r0, 4.13.3-r2
Alpine:v3.22heimdal0, 1.2.1-r0, 1.2.1-r1
Alpine:v3.19samba3.2.8-r1, 3.3.4-r0, 3.3.5-r0
Alpine:v3.20samba3.6.13-r1, 3.6.15-r0, 3.6.16-r0
Alpine:v3.23samba4.7.3-r0, 0, 3.2.8-r0
Alpine:v3.22samba4.10.2-r0, 4.8.8-r0, 4.8.7-r0
Alpine:v3.23heimdal0, 1.2.1-r0, 1.2.1-r1
Alpine:v3.16samba4.1.12-r0, 4.8.8-r0, 4.8.7-r0
Alpine:v3.16heimdal7.4.0-r2, 7.4.0-r1, 7.4.0-r0
Alpine:v3.21samba3.6.4-r1, 3.6.7-r0, 3.6.7-r1
Alpine:v3.18heimdal7.7.0-r0, 7.5.0-r3, 7.5.0-r2

Timeline

  • Jan 12, 2023 CVE Published
  • Dec 3, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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