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CVE-2020-11565Date: (C)2020-04-08   (M)2024-03-26


An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue ���is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.���

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.0CVSS Score : 3.6
Exploit Score: 0.8Exploit Score: 3.9
Impact Score: 5.2Impact Score: 4.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: HIGHAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
DSA-4667
DSA-4698
USN-4363-1
USN-4364-1
USN-4367-1
USN-4368-1
USN-4369-1
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd

CWE    1
CWE-787
OVAL    21
oval:org.secpod.oval:def:67952
oval:org.secpod.oval:def:63510
oval:org.secpod.oval:def:705479
oval:org.secpod.oval:def:604822
...

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