5.5

CVE-2018-11508: canonical ubuntu_linux

Modified
AliasesUBUNTU-CVE-2018-11508DEBIAN-CVE-2018-11508
Published 28-05-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-11508 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 1.69% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities. 2 public exploits are 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
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
1.69%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
USN-3695-1USN-3695-2USN-3697-2

Timeline

  1. 28-05-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The compat_get_timex function in kernel/compat.c in the Linux kernel before 4.16.9 allows local users to obtain sensitive information from kernel memory via adjtimex.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.69%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.69% 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

2 found
  • referenceUnverified

    Exploit Reference (bugs.chromium.org)

    Maturity: unknown

  • exploit-databasedoslinuxUnverified

    Linux Kernel 4.13 - 'compat_get_timex()' Leak Kernel Pointer

    Maturity: poc

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.

Ubuntu8 products
  • linux< 4.15.0-24.26
  • linux-aws< 4.15.0-1011.11
  • linux-azure< 4.15.0-1014.14~16.04.1 | < 4.15.0-1014.14
  • linux-gcp< 4.15.0-1014.14~16.04.1 | < 4.15.0-1010.10
  • linux-hwe< 4.15.0-24.26~16.04.1
Canonical1 product
Debian1 product
  • linux< 4.16.12-1
Linux1 product

4 vendors · 11 products

References

17 links
Show all 17 references