9.8

CVE-2018-12911: canonical ubuntu_linux Out-of-bounds Write

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2018-12911DEBIAN-CVE-2018-12911
Published 19-07-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-12911 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 1.73% chance of exploitation in the next 30 days, higher than 77.1% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
1.73%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
OPENSUSE-SU-2024:11506-1SUSE-SU-2018:2752-1SUSE-SU-2018:3387-1USN-3743-1

Timeline

  1. 19-07-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

WebKitGTK+ 2.20.3 has an off-by-one error, with a resultant out-of-bounds write, in the get_simple_globs functions in ThirdParty/xdgmime/src/xdgmimecache.c and ThirdParty/xdgmime/src/xdgmimeglob.c.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.73%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.73% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.73%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu4 products
  • qtwebkit-opensource-srcAll versions (No fix recorded)
  • qtwebkit-sourceAll versions (No fix recorded)
  • webkit2gtk< 2.20.5-0ubuntu0.16.04.1 | < 2.20.5-0ubuntu0.18.04.1
  • webkitgtkAll versions (No fix recorded)
Canonical1 product
Debian1 product
  • webkit2gtk< 2.20.4-1
Webkitgtk1 product

4 vendors · 7 products

References

7 links