An issue was discovered in the Linux kernel before 4.18.11. The ipddpioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAPNETADMIN to read the ipddproute dev and next fields via an SIOCFINDIPDDPRT ioctl call.
[
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@9824dfae5741275473a23a7ed5756c7b6efacc9d",
"target": {
"file": "drivers/net/appletalk/ipddp.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"215173515061616058486026756158657598906",
"190477064805577175891448534663774940340",
"272139519163562793744871675067139094935",
"38982436541993728630088599882262004934",
"336473919580063037588803140711247841106"
]
},
"deprecated": false,
"id": "CVE-2018-20511-48969d6b",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@9824dfae5741275473a23a7ed5756c7b6efacc9d",
"target": {
"file": "drivers/net/appletalk/ipddp.c",
"function": "ipddp_ioctl"
},
"digest": {
"function_hash": "77862887290750367361896183554805708136",
"length": 693.0
},
"deprecated": false,
"id": "CVE-2018-20511-4a242b52",
"signature_type": "Function",
"signature_version": "v1"
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20511.json"