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{
"id": "CVE-2022-28733",
"sourceIdentifier": "security@ubuntu.com",
"published": "2023-07-20T01:15:10.140",
"lastModified": "2023-07-20T11:19:25.143",
"vulnStatus": "Awaiting Analysis",
"descriptions": [
{
"lang": "en",
"value": "Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "security@ubuntu.com",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH"
},
"exploitabilityScore": 2.2,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "security@ubuntu.com",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-191"
}
]
}
],
"references": [
{
"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28733",
"source": "security@ubuntu.com"
},
{
"url": "https://www.openwall.com/lists/oss-security/2022/06/07/5",
"source": "security@ubuntu.com"
}
]
}