ALPINE-CVE-2022-3437

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2022-3437
Published: 12 Jan 2023, 15:15
Last modified:03 Dec 2025, 22:49

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Jan 2023, 15:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:49
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•heimdal

    < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0 | < 7.7.1-r0

  • alpine•samba

    < 4.15.12-r0 | < 4.15.12-r0 | < 4.16.6-r0 | < 4.16.6-r0 | < 4.16.6-r0 | < 4.16.6-r0 | < 4.16.6-r0 | < 4.16.6-r0 | < 4.16.6-r0

References (1)