tcpemu in tcpsubr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.
{
"unresolved_ranges": [
{
"cpe": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "15.1"
}
],
"source": "CPE_FIELD"
}
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "4.1.0"
},
{
"last_affected": "4.2.0"
},
{
"last_affected": "8.0"
},
{
"last_affected": "9.0"
}
],
"cpe": [
"cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"source": "CPE_FIELD"
}