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Ubuntu 14.04 ESM USN-4896-2 Critical: lxml XSS Attack Risk

ubuntu
Calendar Grey April 8, 2021
Dist Ubuntu Esm H88
Ubuntu Security Announcement USN-4896-2 draws attention to the cross-site scripting vulnerability found in lxml within Ubuntu 14.04 ESM.
lxml could allow cross-site scripting (XSS) attacks.

Summary

lxml could allow cross-site scripting (XSS) attacks.

Software Description:

- lxml: pythonic binding for the libxml2 and libxslt libraries

Details:

USN-4896-1 fixed a vulnerability in lxml. This update provides

the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that lxml incorrectly handled certain HTML attributes. A

remote attacker could possibly use this issue to perform cross-site

scripting (XSS) attacks.

Topics%20covered

Topics Covered

security advisory critical XSS Ubuntu attack python lxml

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 ESM:
  python-lxml                     3.3.3-1ubuntu0.2+esm3
  python3-lxml                    3.3.3-1ubuntu0.2+esm3

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4896-2

https://ubuntu.com/security/notices/USN-4896-1

CVE-2021-28957

Severity
critical
Lowest
Low
Medium
High
Critical

April 08, 2021

Topics%20covered

Topics Covered

security advisory critical XSS Ubuntu attack python lxml

Package Information

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