CVE-2018-14647
- Source
- https://cve.org/CVERecord?id=CVE-2018-14647
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14647.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-14647
- Aliases
- Downstream
- Related
- Published
- 2018-09-25T00:29:00.703Z
- Modified
- 2026-02-25T01:13:56.298360Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBJCB2HWOJLP3L7CUQHJHNBHLSVOXJE5/
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://www.securityfocus.com/bid/105396
- http://www.securitytracker.com/id/1041740
- https://access.redhat.com/errata/RHSA-2019:1260
- https://access.redhat.com/errata/RHSA-2019:2030
- https://access.redhat.com/errata/RHSA-2019:3725
- https://bugs.python.org/issue34623
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647
- https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html
- https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html
- https://usn.ubuntu.com/3817-1/
- https://usn.ubuntu.com/3817-2/
- https://www.debian.org/security/2018/dsa-4306
- https://www.debian.org/security/2018/dsa-4307
- https://bugs.python.org/issue34623
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647
- https://bugs.python.org/issue34623
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html
- https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html
Affected packages
Git / github.com/python/cpython
Affected ranges
- Type
- GIT
- Repo
- https://github.com/python/cpython
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroducedLast affectedIntroducedLast affectedIntroducedLast affected