RHSA-2022:4774
Vulnerability from csaf_redhat - Published: 2022-05-27 02:55 - Updated: 2025-11-21 18:31Summary
Red Hat Security Advisory: thunderbird security update
Severity
Critical
Notes
Topic: An update for thunderbird is now available for Red Hat Enterprise Linux 8.4 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 91.9.1.
Security Fix(es):
* Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution (CVE-2022-1529)
* Mozilla: Prototype pollution in Top-Level Await implementation (CVE-2022-1802)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
The Mozilla Foundation Security Advisory describes this flaw as: An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process.
8.8 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
All running instances of Thunderbird must be restarted for the update to take effect.
https://access.redhat.com/errata/RHSA-2022:4774
The Mozilla Foundation Security Advisory describes this flaw as: If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context.
8.8 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
All running instances of Thunderbird must be restarted for the update to take effect.
https://access.redhat.com/errata/RHSA-2022:4774
References
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1529"
},
{
"category": "external",
"summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2022-19/#CVE-2022-1529",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2022-19/#CVE-2022-1529"
}
],
"release_date": "2022-05-20T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
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"title": "Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution"
},
{
"cve": "CVE-2022-1802",
"cwe": {
"id": "CWE-843",
"name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
},
"discovery_date": "2022-05-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2089217"
}
],
"notes": [
{
"category": "description",
"text": "The Mozilla Foundation Security Advisory describes this flaw as: If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Prototype pollution in Top-Level Await implementation",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"category": "external",
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"title": "Mozilla: Prototype pollution in Top-Level Await implementation"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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