The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1493435
- https://usn.ubuntu.com/3583-2/
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
- https://usn.ubuntu.com/3583-1/
- https://access.redhat.com/errata/RHSA-2018:0151
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678
- https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678
- https://lkml.org/lkml/2017/9/18/764
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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