Information Exposure Affecting linux-qemu-6.18 package, versions <6.18.10-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CHAINGUARDLATEST-LINUXQEMU618-15043834
- published21 Jan 2026
- disclosed26 Oct 2018
Introduced: 26 Oct 2018
CVE-2018-6559 (opens in a new tab)How to fix?
Upgrade Chainguard linux-qemu-6.18 to version 6.18.10-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-qemu-6.18 package and not the linux-qemu-6.18 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/105752
- https://launchpad.net/bugs/1793458
- https://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html
- https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html
- https://usn.ubuntu.com/3832-1/
- https://usn.ubuntu.com/3833-1/
- https://usn.ubuntu.com/3835-1/
- https://usn.ubuntu.com/3836-1/
- https://usn.ubuntu.com/3836-2/