CVE-2018-14647
HIGH7.5EPSS 1.2%python3.4 - security update
Published: 9/25/2018Modified: 11/19/2025
Also known as:ALPINE-CVE-2018-14647DEBIAN-CVE-2018-14647
Description
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.
Affected packages (5)
- Alpine/python2from 0, < 2.7.16-r0
- Alpine/python3from 0, < 3.6.8-r0
- Debian/python2.7from 0, < 2.7.15-5
- Debian/python2.7from 0, < 2.7.9-2+deb8u3
- Debian/python3.4from 0, < 3.4.2-1+deb8u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |