CVE-2022-41916 Read one byte past a buffer when normalizing Unicode

2022-11-1500:00:00

CWE-193

GitHub_M

www.cve.org

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

70.3%

JSON

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal’s PKI certificate validation library, affecting the KDC (via PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal’s libhx509. Users should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue.

CNA Affected

[
  {
    "vendor": "heimdal",
    "product": "heimdal",
    "versions": [
      {
        "version": "< 7.7.1",
        "status": "affected"
      }
    ]
  }
]