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This project will be discontinued after December 13, 2021. [more]
2017-10-12
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.
| Products | Linux_kernel |
| Type | NULL Pointer Dereference (CWE-476) |
| First patch |
https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678 |
| Patches | http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678 |
| Relevant file/s | ./security/keys/keyctl.c (modified, +5) |
| Links |
• https://lkml.org/lkml/2017/9/18/764
• https://usn.ubuntu.com/3583-1/ • https://access.redhat.com/errata/RHSA-2018:0151 • http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 • https://usn.ubuntu.com/3583-2/ |
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