CVE-2022-24809 net-snmp: A malformed OID in a SET request to NET-SNMP-AGENT-MIB::nsLogTable can cause a NULL pointer dereference

2024-04-1619:56:07

CWE-476

GitHub_M

github.com

net-snmp

oid

null pointer

snmpv3

credentials

snmpv1

snmpv2c

ip address restrictions

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.6

Confidence

Low

EPSS

Percentile

10.3%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

net-snmp provides various tools relating to the Simple Network Management Protocol. Prior to version 5.9.2, a user with read-only credentials can use a malformed OID in a GET-NEXT to the nsVacmAccessTable to cause a NULL pointer dereference. Version 5.9.2 contains a patch. Users should use strong SNMPv3 credentials and avoid sharing the credentials. Those who must use SNMPv1 or SNMPv2c should use a complex community string and enhance the protection by restricting access to a given IP address range.

CNA Affected

[
  {
    "repo": "https://github.com/net-snmp/net-snmp",
    "vendor": "net-snmp",
    "product": "net-snmp",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "5.9.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]