CVE-2016-2143
HighThe fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type
CWE-20CVE-2016-2143 is a Improper Input Validation vulnerability
What is Improper Input Validation?
The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2016-2143 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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Third Party Advisory
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Third Party Advisory
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Third Party Advisory
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Third Party Advisory
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Third Party Advisory
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Third Party Advisory
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Third Party Advisory
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Debian Securityhttp://www.debian.org/security/2016/dsa-3607Third Party Advisory
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Third Party Advisory
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Debian Securityhttps://security-tracker.debian.org/tracker/CVE-2016-2143Third Party Advisory
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PatchKernel patch commithttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/3446c13b268af86391d06611327006b059b8bab1
Frequently asked questions
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What is CVE-2016-2143?
CVE-2016-2143 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2016-2143 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2016-2143?
CVE-2016-2143 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2016-2143?
No patch is currently available for CVE-2016-2143. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2016-2143 actively exploited?
No — CVE-2016-2143 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Improper Input Validation (CWE-20)?
The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →