Low severity · published Oct 26, 2018
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…
3.3
CVSS
0.5%
EPSS
No
On KEV
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 namespace.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6559
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6559
Third Party Advisory
http://www.securityfocus.com/bid/105752
Exploit
https://launchpad.net/bugs/1793458
Third Party Advisory
https://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html
Third Party Advisory
https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html
Third Party Advisory
https://usn.ubuntu.com/3832-1/
Third Party Advisory
https://usn.ubuntu.com/3833-1/
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