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.

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.

EPSS: 0.002 (9.8th percentile) — read the EPSS interpretation.

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.

Affected products

Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
Debian 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)

CWE-911

References

security@ubuntu.com (vendor-advisory, Vendor Advisory)
security@ubuntu.com (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.