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CVE-2020-11935

Good to know:

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Date: April 6, 2023

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.

Language: C

Severity Score

Related Resources (8)

https://security-tracker.debian.org/tracker/CVE-2020-11935
https://nvd.nist.gov/vuln/detail/CVE-2020-11935
https://github.com/sfjro/aufs4-linux/commit/f10aea57d39d6cd311312e9e7746804f7059b5c8
https://bugzilla.redhat.com/show_bug.cgi?id=1903678
https://bugs.launchpad.net/bugs/1873074
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-11935
https://ubuntu.com/security/CVE-2020-11935
https://www.mend.io/vulnerability-database/CVE-2020-11935

Severity Score

Weakness Type (CWE)

Improper Update of Reference Count

CWE-911

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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