Medium severity5.5NVD Advisory· Published Oct 12, 2017· Updated Jun 17, 2026
CVE-2017-12192
CVE-2017-12192
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.
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Affected products
2Patches
Vulnerability mechanics
References
8- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
- github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678nvdPatchVendor Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- lkml.org/lkml/2017/9/18/764nvdMailing ListThird Party Advisory
- access.redhat.com/errata/RHSA-2018:0151nvd
- usn.ubuntu.com/3583-1/nvd
- usn.ubuntu.com/3583-2/nvd
News mentions
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