- Description
- The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.
- Source
- cve@mitre.org
- NVD status
- Deferred
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Hype score
- Not currently trending
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:freebsd:freebsd:4.5:release:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3D41CB12-7894-4D25-80EC-23C56171D973"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:4.5:stable:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "09789843-6A1A-4CDB-97E8-89E82B79DDB5"
}
],
"operator": "OR"
}
]
}
]