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Ubuntu: (Multiple Advisories) (CVE-2018-14647): Python vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2018-14647): Python vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
09/24/2018
Created
03/19/2019
Added
11/15/2018
Modified
07/08/2020

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.

Solution(s)

  • ubuntu-upgrade-python2-7
  • ubuntu-upgrade-python2-7-minimal
  • ubuntu-upgrade-python3-4
  • ubuntu-upgrade-python3-4-minimal
  • ubuntu-upgrade-python3-5
  • ubuntu-upgrade-python3-5-minimal

References

  • USN-3817-1
  • USN-3817-2
  • DSA-4306
  • DSA-4307
  • CVE-2018-14647

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