CVE-2018-6559
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user
02 Description
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.53% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 44.6% of scored records. A rank, not a probability.
- NVD base score
- 3.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-10-26 17:00Z8 YR AGO
- Last updated
- 2024-09-16 19:19Z2 YR AGO
- Reserved
- 2018-02-02
- Assigning CNA
- canonical
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
- Data version
- 5.1
- Document digest
- 14caeb11ba72854a91d3cd4a4533a30f7f1ac2a96ba92bc9dff4dc120b717e7e
05 Affected products
06 References
- www.securityfocus.com105752http://www.securityfocus.com/bid/105752
- usn.ubuntu.comUSN-3836-2https://usn.ubuntu.com/3836-2/
- usn.ubuntu.comUSN-3835-1https://usn.ubuntu.com/3835-1/
- people.canonical.comhttps://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html
- lists.ubuntu.comhttps://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html
- usn.ubuntu.comUSN-3833-1https://usn.ubuntu.com/3833-1/
- usn.ubuntu.comUSN-3832-1https://usn.ubuntu.com/3832-1/
- launchpad.nethttps://launchpad.net/bugs/1793458
- usn.ubuntu.comUSN-3836-1https://usn.ubuntu.com/3836-1/
07 Fixed in
Ubuntu 14.04 LTS
- linux-azure Fixed in 4.15.0-1035.36~14.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-azure Fixed in 4.15.0-1035.36~16.04.1
- linux-gcp Fixed in 4.15.0-1025.26~16.04.1
- linux-hwe Fixed in 4.15.0-42.45~16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-42.45
- linux-aws Fixed in 4.15.0-1029.30
- linux-azure Fixed in 4.15.0-1035.36
- linux-gcp Fixed in 4.15.0-1025.26
- linux-kvm Fixed in 4.15.0-1027.27
- linux-oem Fixed in 4.15.0-1028.33
- linux-raspi2 Fixed in 4.15.0-1029.31
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.