Ubuntu 6588 Published by

The following updates are available for Ubuntu Linux:

[USN-6717-1] Thunderbird vulnerabilities
[USN-6588-2] PAM vulnerability




[USN-6717-1] Thunderbird vulnerabilities


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Ubuntu Security Notice USN-6717-1
March 26, 2024

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

- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in Thunderbird.

Software Description:
- thunderbird: Mozilla Open Source mail and newsgroup client

Details:

Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code. (CVE-2024-0743, CVE-2024-2611,
CVE-2024-2614)

Hubert Kario discovered that Thunderbird had a timing side-channel when
performing RSA decryption. A remote attacker could possibly use this
issue to recover sensitive information. (CVE-2023-5388)

Gary Kwong discovered that Thunderbird incorrectly updated return
registers for JIT code on Armv7-A systems. An attacker could potentially
exploit this issue to execute arbitrary code. (CVE-2024-2607)

Ronald Crane discovered that Thunderbird did not properly manage memory
during character encoding. An attacker could potentially exploit this
issue to cause a denial of service. (CVE-2024-2608)

Georg Felber and Marco Squarcina discovered that Thunderbird incorrectly
handled html and body tags. An attacker who was able to inject markup into
a page otherwise protected by a Content Security Policy may have been able
obtain sensitive information. (CVE-2024-2610)

Ronald Crane discovered a use-after-free in Thunderbird when handling code
in SafeRefPtr. An attacker could potentially exploit this issue to cause a
denial of service, or execute arbitrary code. (CVE-2024-2612)

Ryan VanderMeulen and Dan Minor discovered that Thunderbird did not
properly manage memory conditions in ICU. An attacker could potentially
exploit this issue to cause a denial of service. (CVE-2024-2616)

Update instructions:

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

Ubuntu 23.10:
thunderbird 1:115.9.0+build1-0ubuntu0.23.10.1

Ubuntu 22.04 LTS:
thunderbird 1:115.9.0+build1-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
thunderbird 1:115.9.0+build1-0ubuntu0.20.04.1

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

References:
https://ubuntu.com/security/notices/USN-6717-1
CVE-2023-5388, CVE-2024-0743, CVE-2024-2607, CVE-2024-2608,
CVE-2024-2610, CVE-2024-2611, CVE-2024-2612, CVE-2024-2614,
CVE-2024-2616

Package Information:
https://launchpad.net/ubuntu/+source/thunderbird/1:115.9.0+build1-0ubuntu0.23.10.1
https://launchpad.net/ubuntu/+source/thunderbird/1:115.9.0+build1-0ubuntu0.22.04.1
https://launchpad.net/ubuntu/+source/thunderbird/1:115.9.0+build1-0ubuntu0.20.04.1



[USN-6588-2] PAM vulnerability


==========================================================================
Ubuntu Security Notice USN-6588-2
March 26, 2024

pam vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

PAM could be made to stop responding if it opened a specially crafted file.

Software Description:
- pam: Pluggable Authentication Modules

Details:

USN-6588-1 fixed a vulnerability in PAM. This update
provides the corresponding updates for Ubuntu 14.04 LTS,
Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS.

Original advisory details:

 Matthias Gerstner discovered that the PAM pam_namespace module incorrectly
 handled special files when performing directory checks. A local attacker
 could possibly use this issue to cause PAM to stop responding,
resulting in
 a denial of service.

Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  libpam-modules                  1.1.8-3.6ubuntu2.18.04.6+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  libpam-modules                  1.1.8-3.2ubuntu2.3+esm5

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
  libpam-modules                  1.1.8-1ubuntu2.2+esm4

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

References:
  https://ubuntu.com/security/notices/USN-6588-2
  https://ubuntu.com/security/notices/USN-6588-1
  CVE-2024-22365