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CVE
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CVE-2016-2853Date: (C)2016-06-02   (M)2023-12-22


The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 4.4
Exploit Score: 1.8Exploit Score: 3.4
Impact Score: 5.9Impact Score: 6.4
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: MEDIUM
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: HIGHAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
BID-96839
https://sourceforge.net/p/aufs/mailman/message/34864744/
http://www.openwall.com/lists/oss-security/2016/02/24/9
http://www.openwall.com/lists/oss-security/2021/10/18/1
http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/

CPE    1
cpe:/o:linux:linux_kernel
CWE    1
CWE-269

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