7.1

CVE-2018-14609: canonical ubuntu_linux NULL Pointer Dereference

Modified
AliasesUBUNTU-CVE-2018-14609DEBIAN-CVE-2018-14609
Published 27-07-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-14609 is a high (CVSS 7.1) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.66% chance of exploitation in the next 30 days, higher than 85.6% of scored vulnerabilities. 1 public exploit is recorded.

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
7.1/10
010
High · v2.0 (NVD)
EPSS score
2.66%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 7 · Related 4
DLA-1529-1DLA-1531-1DSA-4308-1USN-3821-1USN-3821-2USN-4094-1

Timeline

  1. 27-07-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in __del_reloc_root() in fs/btrfs/relocation.c when mounting a crafted btrfs image, related to removing reloc rb_trees when reloc control has not been initialized.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.66%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.66% 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

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.kernel.org)

    Maturity: unknown

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.

Ubuntu23 products
  • linuxAll versions (No fix recorded) | < 4.4.0-139.165 | < 4.15.0-58.64
  • linux-aws< 4.4.0-1034.37 | < 4.4.0-1072.82 | < 4.15.0-1047.49
  • linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
  • linux-aws-hwe< 4.15.0-1047.49~16.04.1
  • linux-azure< 4.15.0-1059.64~14.04.1 | < 4.15.0-1055.60 | < 4.18.0-1011.11~18.04.1
Debian2 products
Canonical1 product
Linux1 product

4 vendors · 27 products

References

16 links
Show all 16 references