Vulnerability in Canonical Ubuntu Linux
CVE-2020-11935
It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (9.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 10.0
- Ubuntu Linux Kernel (Aufs Filesystem Module) — versions 4.4.0-186.216, 4.15.0-112.113, 5.4.0-42.46
Weakness classification (CWE)
References
- ubuntu.com/security/CVE-2020-11935 (vendor-advisory, Vendor Advisory)
- bugs.launchpad.net/bugs/1873074 (vendor-advisory, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-11935?
- CVE-2020-11935 is a medium-severity vulnerability in Canonical Ubuntu Linux, classified under CWE-911. CVSS score: 4.4/10. Published 2023-04-07.
- How severe is CVE-2020-11935?
- Medium severity. CVSS v3 base score is 4.4 out of 10.