fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary code via a crafted cache file.
{
"unresolved_ranges": [
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
"extracted_events": [
{
"last_affected": "12.04"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"extracted_events": [
{
"last_affected": "14.04"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"extracted_events": [
{
"last_affected": "16.04"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "8.0"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "23"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "24"
}
]
}
]
}{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:a:fontconfig_project:fontconfig:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.12.1"
}
]
}