The pharmakedirstream function in ext/phar/dirstream.c in PHP before 5.6.18 and 7.x before 7.0.3 mishandles zero-size ././@LongLink files, which allows remote attackers to cause a denial of service (uninitialized pointer dereference) or possibly have unspecified other impact via a crafted TAR archive.
[
{
"id": "CVE-2016-4343-1be520b7",
"signature_version": "v1",
"deprecated": false,
"source": "https://github.com/php/php-src/commit/4e1b8701573698f56e12672e4991d7e6239138d2",
"target": {
"function": "PHP_MINIT_FUNCTION",
"file": "ext/standard/exec.c"
},
"digest": {
"length": 231.0,
"function_hash": "295037734266504677848102670698206975725"
},
"signature_type": "Function"
},
{
"id": "CVE-2016-4343-998c6db5",
"signature_version": "v1",
"deprecated": false,
"source": "https://github.com/php/php-src/commit/4e1b8701573698f56e12672e4991d7e6239138d2",
"target": {
"file": "ext/standard/exec.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"47536493921292488180503894855773419194",
"114465696917561743629200732476751433886",
"328867887628948915816274583623244400274",
"297376920111133995317562874093014086385",
"168934627128843040351700635521553019231",
"258560438346906560143303805605521795951",
"2153196558742618628732246770820228434"
]
},
"signature_type": "Line"
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4343.json"