In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
{
"unresolved_ranges": [
{
"source": "CPE_FIELD",
"extracted_events": [
{
"fixed": "5.19.0"
}
],
"cpe": "cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "12.04"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "14.04"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "16.04"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "18.04"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "19.10"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "20.04"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "10.0"
}
],
"cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
}
]
}