w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m directory is unwritable, which allows a local attacker to craft a symlink attack to overwrite arbitrary files.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "12.04"
},
{
"last_affected": "14.04"
},
{
"last_affected": "16.04"
},
{
"last_affected": "17.10"
}
],
"source": "CPE_FIELD",
"vendor_product": "canonical:ubuntu_linux"
}
]
}