There is an invalid memory access in the function GfxIndexedColorSpace::mapColorToBase() located in GfxState.cc in Xpdf 4.0.0, as used in pdfalto 0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftops binary. It allows an attacker to cause Denial of Service (Segmentation fault) or possibly have unspecified other impact.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:xpdfreader:xpdf:4.0.0:*:*:*:*:*:*:*"
],
"source": "CPE_STRING",
"vendor_product": "xpdfreader:xpdf",
"extracted_events": [
{
"introduced": "4.0.0"
},
{
"last_affected": "4.0.0"
}
]
}
]
}