NULL Pointer Dereference Affecting kernel-debug-devel package, versions <0:3.10.0-693.17.1.el7
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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Start learning- Snyk IDSNYK-CENTOS7-KERNELDEBUGDEVEL-2095861
- published26 Jul 2021
- disclosed18 Sept 2017
Introduced: 18 Sep 2017
CVE-2017-12192 (opens in a new tab)How to fix?
Upgrade Centos:7 kernel-debug-devel to version 0:3.10.0-693.17.1.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel package as distributed by Centos.
See How to fix? for Centos:7 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
- https://access.redhat.com/security/cve/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