CVE-2018-20511: debian debian_linux
CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-20511DEBIAN-CVE-2018-20511
Published 27-12-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-20511 is a medium (CVSS 5.5) vulnerability in debian debian_linux. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 27-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
0.00 pp
From 0.47% on 18-09-2026
18-09-202618-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu23 products
- linuxAll versions (No fix recorded) | < 4.4.0-139.165 | < 4.15.0-58.64
- linux-aws< 4.4.0-1034.37 | < 4.4.0-1072.82 | < 4.15.0-1047.49
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1047.49~16.04.1
- linux-azure< 4.15.0-1059.64~14.04.1 | < 4.15.0-1055.60 | < 4.18.0-1011.11~18.04.1
Debian2 products
- linux< 4.18.20-1
- debian_linuxEOL8.0
Linux1 product
- linux_kernel< 4.18.11
3 vendors · 26 products
References
15 links- github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9dX Refsource MISCPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing ListX Refsource MLISTThird Party Advisory