7.8

CVE-2016-2143: debian debian_linux Improper Input Validation

Modified
AliasesUBUNTU-CVE-2016-2143DEBIAN-CVE-2016-2143
Published 27-04-2016Last modified 05-08-2024

Vulnerability summary

CVE-2016-2143 is a high (CVSS 7.8) Improper Input Validation vulnerability in debian debian_linux. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 46.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.56%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 7
DLA-516-1DSA-3607-1MGASA-2016-0225MGASA-2016-0232MGASA-2016-0233RHSA-2016:1539

Timeline

  1. 27-04-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.56% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu4 products
  • linux< 4.4.0-13.29
  • linux-lts-xenial< 4.4.0-13.29~14.04.1
  • linux-raspi2< 4.4.0-1004.5
  • linux-snapdragon< 4.4.0-1012.12
Debian2 products
Linux1 product
  • linux_kernel≥ 2.6.25, < 3.2.79 | ≥ 3.3, < 3.12.58 | ≥ 3.13, < 3.16.35 | ≥ 3.17, < 4.1.21 | ≥ 4.2, < 4.4.6
Oracle1 product
Redhat1 product

5 vendors · 9 products

References

15 links
Show all 15 references