CVE-2018-20511
The ipddp_ioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call.
Does this matter?
Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in the Linux kernel before 4.18.11. The ipddp_ioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.47% probability · 40th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- linux/linux kernel · debian/debian linux
- Source
- cve@mitre.org
EPSS 0.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Vendor Advisory
- http://www.securityfocus.com/bid/106347Third Party Advisory, VDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
- https://lkml.org/lkml/2018/9/27/480Patch, Third Party Advisory
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Vendor Advisory
- http://www.securityfocus.com/bid/106347Third Party Advisory, VDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9dPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
- https://lkml.org/lkml/2018/9/27/480Patch, Third Party Advisory
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.