7.8

CVE-2018-10902: canonical ubuntu_linux Use After Free

Modified
AliasesRHSA-2019:0415UBUNTU-CVE-2018-10902DEBIAN-CVE-2018-10902
Published 21-08-2018Last modified 07-07-2026

Vulnerability summary

CVE-2018-10902 is a high (CVSS 7.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 44.4% 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 · v3.0 (CVE.org)
EPSS score
0.52%
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 38 · Related 31
DLA-1529-1DLA-1531-1DSA-4308-1RHSA-2018:3083RHSA-2018:3096RHSA-2019:0641

Timeline

  1. 21-08-2018
    PublishedVulnerability first disclosed.
  2. 07-07-2026
    Last modifiedVulnerability information updated.

Description

It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.52% 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.

Chainguard83 products
  • hyperv-daemons-6.18All versions (No fix recorded)
  • hyperv-daemons-genericAll versions (No fix recorded)
  • linux-aws-6.12All versions (No fix recorded) | < 6.12.65-r0
  • linux-aws-6.12-boot-installedAll versions (No fix recorded)
  • linux-aws-6.12-fips-boot-installedAll versions (No fix recorded)
Redhat25 products
Ubuntu17 products
  • linux< 3.13.0-164.214 | < 4.4.0-137.163 | < 4.15.0-43.46
  • linux-aws< 4.4.0-1031.34 | < 4.4.0-1069.79 | < 4.15.0-1031.33
  • linux-azure< 4.15.0-1036.38~14.04.2 | < 4.15.0-1036.38~16.04.1 | < 4.15.0-1036.38
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-fips< 4.4.0-1008.10
Debian2 products
Canonical1 product
Linux1 product

6 vendors · 129 products

References

35 links
Show all 35 references