What’s Vulnerable › Vulnerabilities

CVE-2020-11935: aufs: improperly managed inode reference counts in the vfsub_dentry_open() method

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-07 · updated 2026-06-17
• Weakness: CWE-911

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.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 20.04
• Debian Linux: 10.0

References

• https://bugs.launchpad.net/bugs/1873074
• https://ubuntu.com/security/CVE-2020-11935
• https://bugs.launchpad.net/bugs/1873074
• https://ubuntu.com/security/CVE-2020-11935

Get alerted when CVE-2020-11935 or the next vulnerability affects your stack