CVE-2023-34414: Low severity Mozilla Thunderbird vulnerability

Published Jun 6, 2023
·
Updated

The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site.

Other sources

The error page for sites with invalid TLS certificates was missing the activation-delay Thunderbird uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site.

Affected Software

14 affected componentsFixes available
ubuntu/firefox<114.0+
114.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
ubuntu/thunderbird<1:102.13.0+
1:102.13.0+
debian/firefox
123.0-1
debian/firefox-esr<=91.12.0esr-1~deb10u1
115.8.0esr-1~deb10u1115.7.0esr-1~deb11u1115.8.0esr-1~deb11u1115.7.0esr-1~deb12u1115.8.0esr-1~deb12u1115.8.0esr-1
debian/thunderbird<=1:91.12.0-1~deb10u1
1:115.8.0-1~deb10u11:115.7.0-1~deb11u11:115.8.0-1~deb11u11:115.7.0-1~deb12u11:115.8.0-1~deb12u11:115.7.0-11:115.8.1-1
Mozilla Thunderbird<102.12
102.12
Mozilla Firefox<114.0
Mozilla Firefox ESR<102.12
Mozilla Thunderbird<102.12
Mozilla Firefox<114
114
Mozilla Firefox ESR<102.12
102.12

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/firefox to a version that resolves this vulnerability.

    Fixed in 114.0+
  2. Upgrade

    Upgrade ubuntu/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:102.13.0+
  3. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 123.0-1
  4. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 115.8.0esr-1~deb10u1Fixed in 115.7.0esr-1~deb11u1Fixed in 115.8.0esr-1~deb11u1Fixed in 115.7.0esr-1~deb12u1Fixed in 115.8.0esr-1~deb12u1Fixed in 115.8.0esr-1
  5. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:115.8.0-1~deb10u1Fixed in 1:115.7.0-1~deb11u1Fixed in 1:115.8.0-1~deb11u1Fixed in 1:115.7.0-1~deb12u1Fixed in 1:115.8.0-1~deb12u1Fixed in 1:115.7.0-1Fixed in 1:115.8.1-1
  6. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 102.12
  7. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 114
  8. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 102.12

Event History

Jun 6, 2023
CVE Published
via Mozilla·12:00 AM
Jun 19, 2023
CVE Published
via MITRE·10:14 AM
Data Sourced
via MITRE·10:14 AM
DescriptionWeakness
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·12:21 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2023-34414?

CVE-2023-34414 is a vulnerability in the error page for sites with invalid TLS certificates in Mozilla Firefox and Thunderbird.

2

How does CVE-2023-34414 impact Firefox and Thunderbird?

CVE-2023-34414 can allow a malicious page to exploit human response time delays and elicit user clicks in precise locations, potentially leading to further attacks.

3

What is the severity of CVE-2023-34414?

CVE-2023-34414 has a severity rating of high.

4

How can I fix CVE-2023-34414 in Mozilla Firefox?

To fix CVE-2023-34414 in Mozilla Firefox, update to version 114 or later.

5

How can I fix CVE-2023-34414 in Mozilla Thunderbird?

To fix CVE-2023-34414 in Mozilla Thunderbird, update to version 102.12 or later.

Company

Resources

Contact

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