5.5

CVE-2016-8645: linux linux_kernel Improper Access Control

Modified
AliasesUBUNTU-CVE-2016-8645USN-3290-1DEBIAN-CVE-2016-8645
Published 28-11-2016Last modified 06-08-2024

Vulnerability summary

CVE-2016-8645 is a medium (CVSS 5.5) Improper Access Control vulnerability in linux linux_kernel. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 40.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.46%
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 15 · Related 8
DLA-772-1MGASA-2016-0415MGASA-2017-0003MGASA-2017-0004RHSA-2017:1842RHSA-2017:2077

Timeline

  1. 28-11-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The TCP stack in the Linux kernel before 4.8.10 mishandles skb truncation, which allows local users to cause a denial of service (system crash) via a crafted application that makes sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.46% on 04-10-2026

04-10-202603-11-2026

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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu21 products
  • linux< 3.13.0-119.166 | < 4.4.0-57.78
  • linux-azureAll versions (No fix recorded)
  • linux-azure-6.11All versions (No fix recorded)
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-azure-fde-5.15All versions (No fix recorded)
Debian1 product
  • linux< 4.8.11-1
Linux1 product

3 vendors · 23 products

References

22 links
Show all 22 references