VDB
ALPINE-CVE-2018-14647
ALPINE-CVE-2018-14647
PUBLISHED
CVSS 7.5 HIGH
Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. The vulnerability exists in Python versions 3.7.0, 3.6.0 through 3.6.6, 3.5.0 through 3.5.6, 3.4.0 through 3.4.9, 2.7.0 through 2.7.15.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.8 | python3 | 3.5.1-r0, 3.6.2-r1, 3.6.2-r2 |
| Alpine:v3.8 | python2 | 2.7.6-r0, 2.7.6-r1, 2.7.6-r2 |
| Alpine:v3.11 | python2 | 2.7.13-r0, 2.7.9-r4, 2.7.9-r3 |
| Alpine:v3.7 | python2 | 2.7.9-r4, 2.7.9-r3, 2.7.9-r2 |
| Alpine:v3.12 | python2 | 2.7.14-r3, 0, 2.6.1-r0 |
| Alpine:v3.10 | python2 | 0, 2.7.9-r4, 2.7.9-r3 |
| Alpine:v3.9 | python2 | 2.7.10-r3, 2.7.5-r1, 2.7.6-r0 |
| Alpine:v3.6 | python3 | 3.3.0-r0, 3.4.1-r0, 3.5.1-r3 |
| Alpine:v3.7 | python3 | 3.6.2-r0, 3.6.1-r4, 3.6.1-r3 |
Timeline
- Sep 25, 2018 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch