Information disclosure in Linux Kernel
CVE-2018-20511
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Linux Kernel
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- lkml.org/lkml/2018/9/27/480 (Patch, Third Party Advisory)
- github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9d (Patch, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11 (Release Notes, Vendor Advisory)
- www.securityfocus.com/bid/106347 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2019/03/msg00034.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/04/msg00004.html (mailing-list)
- usn.ubuntu.com/4094-1/ (vendor-advisory)
- usn.ubuntu.com/4118-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2018-20511?
- CVE-2018-20511 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 5.5/10. Published 2018-12-27.
- How severe is CVE-2018-20511?
- Medium severity. CVSS v3 base score is 5.5 out of 10.