7.8

CVE-2018-14734: canonical ubuntu_linux Use After Free

Modified
AliasesSUSE-SU-2019:1422-1SUSE-SU-2019:1437-1SUSE-SU-2019:1489-1
Published 29-07-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-14734 is a high (CVSS 7.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 47% 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 (NVD)
EPSS score
0.57%
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 22 · Related 16
DLA-1529-1DLA-1531-1DSA-4308-1RHSA-2019:0831RHSA-2019:2029RHSA-2019:2043

Timeline

  1. 29-07-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.57% 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.

Ubuntu17 products
  • linux< 3.13.0-164.214 | < 4.4.0-138.164 | < 4.15.0-43.46
  • linux-aws< 4.4.0-1032.35 | < 4.4.0-1070.80 | < 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
Suse10 products
  • kernel-livepatch-SLE15_Update_0&distro=SUSE Linux Enterprise Live Patching 15< 10-28.1
  • kernel-livepatch-SLE15_Update_1&distro=SUSE Linux Enterprise Live Patching 15< 9-2.1
  • kgraft-patch-SLE12_Update_36&distro=SUSE Linux Enterprise Server 12-LTSS< 10-2.1
  • kgraft-patch-SLE12-SP1_Update_29&distro=SUSE Linux Enterprise Server 12 SP1-LTSS< 10-2.1
  • kgraft-patch-SLE12-SP1_Update_29&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP1< 10-2.1
Debian2 products
Canonical1 product
Linux1 product

5 vendors · 31 products

References

30 links
Show all 30 references