5

CVE-2015-8215: linux linux_kernel Improper Input Validation

Modified
AliasesUBUNTU-CVE-2015-8215DEBIAN-CVE-2015-8215
Published 16-11-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-8215 is a medium (CVSS 5.0) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 3.69% chance of exploitation in the next 30 days, higher than 89.7% of scored vulnerabilities.

Priority
Routine

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

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
3.69%
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 11 · Related 7
DLA-310-1DSA-3364-1RHSA-2015:2152RHSA-2016:0855SUSE-SU-2015:2292-1SUSE-SU-2015:2339-1

Timeline

  1. 16-11-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel before 4.0 does not validate attempted changes to the MTU value, which allows context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.69%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.69% 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: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Ubuntu20 products
  • linux< 3.13.0-66.108
  • 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< 4.0.2-1
Linux1 product

3 vendors · 22 products

References

19 links
Show all 19 references