CVE-2021-23998
First published: Mon Apr 19 2021(Updated: )
Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 | |
| debian/thunderbird | 1:91.12.0-1~deb10u1 1:115.3.1-1~deb10u1 1:102.13.1-1~deb11u1 1:115.3.1-1~deb11u1 1:102.15.1-1~deb12u1 1:115.3.1-1~deb12u1 1:115.3.1-1 | |
| Thunderbird | <78.10 | 78.10 |
| Firefox | <88.0 | |
| Firefox ESR | <78.10 | |
| Thunderbird | <78.10 | |
| Firefox | <88 | 88 |
| Firefox ESR | <78.10 | 78.10 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1667456
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-15/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/#CVE-2021-23998
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-15/#CVE-2021-23998
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/#CVE-2021-23998
- https://security-tracker.debian.org/tracker/CVE-2021-23998
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2021-23998?
CVE-2021-23998 has a moderate severity rating as it can mislead users by displaying a secure lock icon on an insecure HTTP page.
How do I fix CVE-2021-23998?
To fix CVE-2021-23998, upgrade to Mozilla Thunderbird or Firefox ESR version 78.10 or later.
Which versions are affected by CVE-2021-23998?
CVE-2021-23998 affects Mozilla Thunderbird versions prior to 78.10 and Mozilla Firefox ESR versions prior to 78.10.
What is the impact of CVE-2021-23998 on users?
The impact of CVE-2021-23998 is that it can create a false sense of security for users by displaying a secure lock symbol on an unsecured HTTP page.
Is CVE-2021-23998 exploitable remotely?
CVE-2021-23998 is potentially exploitable remotely as it arises from the way new windows handle navigation between secure and insecure content.
- collector/security-tracker-debian
- agent/type
- agent/first-publish-date
- agent/author
- agent/severity
- agent/references
- agent/weakness
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
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- agent/trending
- agent/source
- collector/mozilla-advisory
- agent/software-canonical-lookup-request
- source/Mozilla
- agent/software-canonical-lookup
- collector/nvd-index
- agent/tags
- agent/softwarecombine
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- canonical/thunderbird
- canonical/firefox
- canonical/firefox esr