CVE-2022-3437

2023-01-1200:00:00

CWE-122

redhat

www.cve.org

samba

gssapi

buffer overflow

heimdal

denial of service

7.8 High

AI Score

Confidence

High

0.01 Low

EPSS

Percentile

83.7%

JSON

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.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "samba",
    "versions": [
      {
        "version": "Fixed in samba 4.15.11, samba 4.16.6, samba 4.17.2.",
        "status": "affected"
      }
    ]
  }
]