CVE-2017-12192

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.

• CWE-476

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678Patch, Vendor Advisory
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:0151
• https://bugzilla.redhat.com/show_bug.cgi?id=1493435Issue Tracking, Third Party Advisory
• https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678Patch, Vendor Advisory
• https://lkml.org/lkml/2017/9/18/764Mailing List, Third Party Advisory
• https://usn.ubuntu.com/3583-1/
• https://usn.ubuntu.com/3583-2/
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678Patch, Vendor Advisory
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:0151
• https://bugzilla.redhat.com/show_bug.cgi?id=1493435Issue Tracking, Third Party Advisory
• https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678Patch, Vendor Advisory
• https://lkml.org/lkml/2017/9/18/764Mailing List, Third Party Advisory
• https://usn.ubuntu.com/3583-1/
• https://usn.ubuntu.com/3583-2/

Published

Oct 12, 2017

Last Modified

Jun 17, 2026

Status

Modified

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