CVE-2020-11935
MEDIUMCVSS 5.5/10EPSS 0.20%
Last modified
CVE-2020-11935 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Debian | Debian Linux | 10.0 |
References
- https://bugs.launchpad.net/bugs/1873074Issue Tracking, Vendor Advisory
- https://ubuntu.com/security/CVE-2020-11935Vendor Advisory
- https://bugs.launchpad.net/bugs/1873074Issue Tracking, Vendor Advisory
- https://ubuntu.com/security/CVE-2020-11935Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2020-11935?
CVE-2020-11935 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2020-11935?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-11935?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST