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cvelistZabbixCVELIST:CVE-2023-29451
HistoryJul 13, 2023 - 9:29 a.m.

CVE-2023-29451 Denial of service caused by a bug in the JSON parser

2023-07-1309:29:42
CWE-20
Zabbix
www.cve.org
denial of service
json parser
buffer overrun
zabbix server
zabbix proxy

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

8.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.8%

Specially crafted string can cause a buffer overrun in the JSON parser library leading to a crash of the Zabbix Server or a Zabbix Proxy.

CNA Affected

[
  {
    "defaultStatus": "affected",
    "modules": [
      "Server",
      "Proxy"
    ],
    "product": "Zabbix",
    "repo": "https://git.zabbix.com/",
    "vendor": "Zabbix",
    "versions": [
      {
        "changes": [
          {
            "at": "6.0.15rc1",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "6.0.14",
        "status": "affected",
        "version": "6.0",
        "versionType": "git"
      },
      {
        "changes": [
          {
            "at": "6.2.9rc2",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "6.2.8",
        "status": "affected",
        "version": "6.2",
        "versionType": "git"
      },
      {
        "changes": [
          {
            "at": "6.4.1rc2",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "6.4.0",
        "status": "affected",
        "version": "6.4",
        "versionType": "git"
      },
      {
        "changes": [
          {
            "at": "7.0.0alpha1",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "7.0.0alpha1 ",
        "status": "affected",
        "version": "7.0.0alpha1",
        "versionType": "git"
      }
    ]
  }
]

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

8.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.8%