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CVE
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CVE-2020-36385Date: (C)2021-06-08   (M)2024-04-26


An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 6.8
Exploit Score: 1.8Exploit Score: 8.6
Impact Score: 5.9Impact Score: 6.4
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: MEDIUM
Privileges Required: NONEAuthentication: NONE
User Interaction: REQUIREDConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: HIGHAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1
https://security.netapp.com/advisory/ntap-20210720-0004/
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2
https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6
https://www.starwindsoftware.com/security/sw-20220802-0002/

CWE    1
CWE-416
OVAL    29
oval:org.secpod.oval:def:506610
oval:org.secpod.oval:def:76586
oval:org.secpod.oval:def:89045109
oval:org.secpod.oval:def:506413
...

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