6.8

CVE-2018-2668: canonical ubuntu_linux

Modified
AliasesALPINE-CVE-2018-2668UBUNTU-CVE-2018-2668
Published 18-01-2018Last modified 03-10-2024

Vulnerability summary

CVE-2018-2668 is a medium (CVSS 6.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.98% chance of exploitation in the next 30 days, higher than 90.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
3.98%
0%100%
Low · +0.03 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 18 · Related 8

Timeline

  1. 18-01-2018
    PublishedVulnerability first disclosed.
  2. 03-10-2024
    Last modifiedVulnerability information updated.

Description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.5.58 and prior, 5.6.38 and prior and 5.7.20 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.98%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 3.95% 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

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat7 products
Netapp4 products
Ubuntu4 products
  • mysql-5.5< 5.5.59-0ubuntu0.14.04.1
  • mysql-5.7< 5.7.21-0ubuntu0.16.04.1 | < 5.7.21-1ubuntu1
  • percona-server-5.6All versions (No fix recorded)
  • percona-xtradb-cluster-5.6All versions (No fix recorded)
Alpine1 product
  • mariadb≥ 5.5.0, < 10.1.32-r0
Canonical1 product
Debian1 product
Mariadb1 product
  • mariadb≥ 5.5.0, < 5.5.59 | ≥ 10.0.0, < 10.0.34 | ≥ 10.1.0, < 10.1.31 | ≥ 10.2.0, < 10.2.13
Oracle1 product
  • mysql≥ 5.5.0, ≤ 5.5.58 | ≥ 5.6.0, ≤ 5.6.38 | ≥ 5.7.0, ≤ 5.7.20
Oracle corporation1 product
  • mysql server5.5.58 and prior | 5.6.38 and prior | 5.7.20 and prior

9 vendors · 21 products

References

21 links
Show all 21 references