CVE-2016-2143 — Improper Input Validation in Kernel

CWE-20 — Improper Input ValidationCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer10 documents8 sources
Severity
7.8HIGHNVD
EPSS
0.2%
top 61.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxOracle Linux+1 more
Timeline
PublishedApr 27
Latest updateMay 14

Description

The 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 vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

▶NVDlinux/linux_kernel2.6.25 — 3.2.79+4
▶Debianlinux/linux_kernel< 4.4.6-1+3

Also affects: Debian Linux 6.0, 7.0, 8.0, Enterprise Linux 7.0

Patches

Patch: git.kernel.org ↗Patch: github.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

5
GHSA
GHSA-h8j9-2jj6-73jj: The fork implementation in the Linux kernel before 4↗2022-05-14
▶
OSV
CVE-2016-2143: The fork implementation in the Linux kernel before 4↗2016-04-27
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CVEList
CVE-2016-2143: The fork implementation in the Linux kernel before 4↗2016-04-27
▶
Kernel
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux↗2016-03-10
▶
Kernel
s390/mm: four page table levels vs. fork↗2016-02-15
▶

📋Vendor Advisories

2
Red Hat
kernel: Fork of large process causes memory corruption↗2016-06-01
▶
Debian
CVE-2016-2143: linux - The fork implementation in the Linux kernel before 4.5 on s390 platforms mishand...↗2016
▶

💬Community

2
Bugzilla
CVE-2016-2143 kernel: Fork of large process causes memory corruption [fedora-all]↗2016-06-01
▶
Bugzilla
CVE-2016-2143 kernel: Fork of large process causes memory corruption↗2016-02-16
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CVE-2016-2143 — Improper Input Validation in Kernel | cvebase