Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.18.11 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfPatchVendor Advisory
- http://www.securityfocus.com/bid/106347Third Party AdvisoryVDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11Release NotesVendor Advisory
- https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
- https://lkml.org/lkml/2018/9/27/480PatchThird 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=9824dfPatchVendor Advisory
- http://www.securityfocus.com/bid/106347Third Party AdvisoryVDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11Release NotesVendor Advisory
- https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
FAQ
What is CVE-2018-20511?
CVE-2018-20511 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 CA...
How severe is CVE-2018-20511?
CVE-2018-20511 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-20511?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.