CVE-2018-14647
Published: 24 September 2018
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.
Priority
Medium
CVSS 3 base score: 7.5
Status
| Package | Release | Status |
|---|---|---|
|
python2.7 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.10 (Impish Indri) |
Not vulnerable
(2.7.15-4ubuntu4)
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(2.7.15-4ubuntu4)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(2.7.15-4ubuntu4)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(2.7.15~rc1-1ubuntu0.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(2.7.12-1ubuntu0~16.04.4)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(2.7.6-8ubuntu0.5)
|
|
|
Patches: Upstream: https://github.com/python/cpython/commit/18b20bad75b4ff0486940fba4ec680e96e70f3a2 |
||
|
python3.4 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.10 (Impish Indri) |
Does not exist
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.4.3-1ubuntu1~14.04.7)
|
|
|
python3.5 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.10 (Impish Indri) |
Does not exist
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(3.5.2-2ubuntu0~16.04.5)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|
|
|
python3.6 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.10 (Impish Indri) |
Does not exist
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(3.6.7-1~18.04)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: Upstream: https://github.com/python/cpython/commit/f7666e828cc3d5873136473ea36ba2013d624fa1 |
||
|
python3.7 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.7.0-7)
|
| Ubuntu 21.10 (Impish Indri) |
Does not exist
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(3.7.1-1~18.04)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: Upstream: https://github.com/python/cpython/commit/470a435f3b42c9be5fdb7f7b04f3df5663ba7305 |
||