An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhcireaddataport and sdhciwritedataport, respectively, if datacount == blocksize. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
{
"cna_assigner": "redhat",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/3xxx/CVE-2022-3872.json",
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "Affected: up to latest v7.1.0-rc4"
},
{
"last_affected": "Affected: up to latest v7.1.0-rc4"
}
]
}
],
"cwe_ids": [
"CWE-193"
]
}{
"cpe": [
"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:-:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc0:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc1:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc2:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc3:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc4:*:*:*:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "7.1.0"
},
{
"introduced": "7.1.0-NA"
},
{
"last_affected": "7.1.0-NA"
},
{
"introduced": "7.1.0-rc0"
},
{
"last_affected": "7.1.0-rc0"
},
{
"introduced": "7.1.0-rc1"
},
{
"last_affected": "7.1.0-rc1"
},
{
"introduced": "7.1.0-rc2"
},
{
"last_affected": "7.1.0-rc2"
},
{
"introduced": "7.1.0-rc3"
},
{
"last_affected": "7.1.0-rc3"
},
{
"introduced": "7.1.0-rc4"
},
{
"last_affected": "7.1.0-rc4"
}
]
}{
"cpe": [
"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:-:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc0:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc1:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc2:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc3:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:7.1.0:rc4:*:*:*:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "7.1.0"
},
{
"introduced": "7.1.0-NA"
},
{
"last_affected": "7.1.0-NA"
},
{
"introduced": "7.1.0-rc0"
},
{
"last_affected": "7.1.0-rc0"
},
{
"introduced": "7.1.0-rc1"
},
{
"last_affected": "7.1.0-rc1"
},
{
"introduced": "7.1.0-rc2"
},
{
"last_affected": "7.1.0-rc2"
},
{
"introduced": "7.1.0-rc3"
},
{
"last_affected": "7.1.0-rc3"
},
{
"introduced": "7.1.0-rc4"
},
{
"last_affected": "7.1.0-rc4"
}
]
}