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CVE
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CVE-2017-12192Date: (C)2017-10-12   (M)2024-03-21


The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.5CVSS Score : 4.9
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 3.6Impact Score: 6.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: COMPLETE
Integrity: NONE 
Availability: HIGH 
  
Reference:
RHSA-2018:0151
USN-3583-1
USN-3583-2
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
https://bugzilla.redhat.com/show_bug.cgi?id=1493435
https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678
https://lkml.org/lkml/2017/9/18/764

CWE    1
CWE-476
OVAL    16
oval:org.secpod.oval:def:204741
oval:org.secpod.oval:def:205581
oval:org.secpod.oval:def:1600794
oval:org.secpod.oval:def:1502063
...

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