In Libarchive 3.4.0, archivewstringappendfrommbs in archive_string.c has an out-of-bounds read because of an incorrect mbrtowc or mbtowc call. For example, bsdtar crashes via a crafted archive.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
],
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "16.04"
},
{
"last_affected": "18.04"
},
{
"last_affected": "19.10"
}
],
"vendor_product": "canonical:ubuntu_linux"
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "9.0"
},
{
"last_affected": "10.0"
}
],
"vendor_product": "debian:debian_linux"
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "32"
}
],
"vendor_product": "fedoraproject:fedora"
}
]
}