7.5

CVE-2016-9643: webkit Uncontrolled Resource Consumption

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2016-9643
Published 07-03-2017Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-9643 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in webkit. EPSS estimates a 3.07% chance of exploitation in the next 30 days, higher than 87.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
3.07%
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 2 · Related 1
MGASA-2017-0109USN-3257-1

Timeline

  1. 07-03-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number of ($ (open parenthesis and dollar) followed by {-2,16} and a large number of +) (plus close parenthesis).

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.07%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 3.07% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.07%

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< 2.16.1-0ubuntu0.16.04.1
  • webkitgtkAll versions (No fix recorded)
Webkit1 product

2 vendors · 5 products

References

9 links