NULL Pointer Dereference Affecting kernel-tools-debuginfo package, versions <0:4.9.58-18.51.amzn1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Sept 2021
- disclosed12 Oct 2017
Introduced: 12 Oct 2017
CVE-2017-12192 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 kernel-tools-debuginfo to version 0:4.9.58-18.51.amzn1 or higher.
This issue was patched in ALAS-2017-914.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools-debuginfo package and not the kernel-tools-debuginfo package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
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.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678
- https://bugzilla.redhat.com/show_bug.cgi?id=1493435
- https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12192
- https://lkml.org/lkml/2017/9/18/764
- https://access.redhat.com/errata/RHSA-2018:0151
- https://usn.ubuntu.com/3583-1/
- https://usn.ubuntu.com/3583-2/
- http://seclists.org/oss-sec/2017/q4/63
- https://access.redhat.com/errata/RHSA-2018:0152
- https://access.redhat.com/errata/RHSA-2018:0181
- https://access.redhat.com/errata/RHSA-2018:0654
- https://access.redhat.com/errata/RHSA-2020:2430
- https://access.redhat.com/security/cve/CVE-2017-12192