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CVE-2021-43395Date: (C)2022-12-27   (M)2023-12-22


An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90, OmniOS Community Edition r151038, OpenIndiana Hipster 2021.04, and SmartOS 20210923. A local unprivileged user can cause a deadlock and kernel panic via crafted rename and rmdir calls on tmpfs filesystems. Oracle Solaris 10 and 11 is also affected.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.5CVSS Score :
Exploit Score: 1.8Exploit Score:
Impact Score: 3.6Impact Score:
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector:
Attack Complexity: LOWAccess Complexity:
Privileges Required: LOWAuthentication:
User Interaction: NONEConfidentiality:
Scope: UNCHANGEDIntegrity:
Confidentiality: NONEAvailability:
Integrity: NONE 
Availability: HIGH 
  
Reference:
http://www.tribblix.org/relnotes.html
https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c
https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c
https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90
https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424
https://jgardner100.wordpress.com/2022/01/20/security-heads-up/
https://kebe.com/blog/?p=505
https://www.illumos.org/issues/14424
https://www.oracle.com/security-alerts/cpujan2022.html

CWE    1
CWE-667
OVAL    3
oval:org.secpod.oval:def:89991
oval:org.secpod.oval:def:89990
oval:org.secpod.oval:def:2107074

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