An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
{
"unresolved_ranges": [
{
"vendor_product": "debian:debian_linux",
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
},
{
"vendor_product": "fedoraproject:fedora",
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "33"
},
{
"last_affected": "34"
}
],
"source": "CPE_STRING"
},
{
"vendor_product": "redhat:enterprise_linux",
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*"
],
"extracted_events": [
{
"last_affected": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "4.6.0"
}
],
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:*"
}