rhsa-2021_5013
Vulnerability from csaf_redhat
Published
2021-12-08 10:13
Modified
2024-11-06 00:13
Summary
Red Hat Security Advisory: firefox security update
Notes
Topic
An update for firefox is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. 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 Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 91.4.0 ESR.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4
* Mozilla: URL leakage when navigating while executing asynchronous function (CVE-2021-43536)
* Mozilla: Heap buffer overflow when using structured clone (CVE-2021-43537)
* Mozilla: Missing fullscreen and pointer lock notification when requesting both (CVE-2021-43538)
* Mozilla: GC rooting failure when calling wasm instance methods (CVE-2021-43539)
* Mozilla: External protocol handler parameters were unescaped (CVE-2021-43541)
* Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler (CVE-2021-43542)
* Mozilla: Bypass of CSP sandbox directive when embedding (CVE-2021-43543)
* Mozilla: Denial of Service when using the Location API in a loop (CVE-2021-43545)
* Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed (CVE-2021-43546)
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.
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"text": "The Mozilla Foundation Security Advisory describes this flaw as:\r\n\r\nMozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Thunderbird 91.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.",
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"text": "Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4",
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"url": "https://access.redhat.com/security/cve/CVE-2021-43546"
},
{
"category": "external",
"summary": "RHBZ#2030115",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2030115"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-43546",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43546"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-43546",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43546"
}
],
"release_date": "2021-12-07T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-12-08T10:13:09+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing the update, Firefox must be restarted for the changes to take effect.",
"product_ids": [
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:5013"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.