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Ubuntu Security Notice USN-5324-1

Ubuntu Security Notice USN-5324-1
Posted Mar 14, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5324-1 - It was discovered that libxml2 incorrectly handled certain XML files. An attacker could use this issue to cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2022-23308
SHA-256 | 1c5149aad5b6facae2ac354370493c1b521e49e3b4342c008109ec12f8ec6a06

Ubuntu Security Notice USN-5324-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5324-1
March 14, 2022

libxml2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

libxml2 could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- libxml2: GNOME XML library

Details:

It was discovered that libxml2 incorrectly handled certain XML files. An
attacker could use this issue to cause libxml2 to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 21.10:
libxml2 2.9.12+dfsg-4ubuntu0.1
libxml2-utils 2.9.12+dfsg-4ubuntu0.1

Ubuntu 20.04 LTS:
libxml2 2.9.10+dfsg-5ubuntu0.20.04.2
libxml2-utils 2.9.10+dfsg-5ubuntu0.20.04.2

Ubuntu 18.04 LTS:
libxml2 2.9.4+dfsg1-6.1ubuntu1.5
libxml2-utils 2.9.4+dfsg1-6.1ubuntu1.5

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

References:
https://ubuntu.com/security/notices/USN-5324-1
CVE-2022-23308

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.9.12+dfsg-4ubuntu0.1
https://launchpad.net/ubuntu/+source/libxml2/2.9.10+dfsg-5ubuntu0.20.04.2
https://launchpad.net/ubuntu/+source/libxml2/2.9.4+dfsg1-6.1ubuntu1.5
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