rhsa-2021_4116
Vulnerability from csaf_redhat
Published
2021-11-03 16:34
Modified
2024-11-06 00:03
Summary
Red Hat Security Advisory: firefox security update
Notes
Topic
An update for firefox is now available for Red Hat Enterprise Linux 7.
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 91.3.0 ESR.
Security Fix(es):
* Mozilla: Use-after-free in HTTP2 Session object
* Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
* Mozilla: iframe sandbox rules did not apply to XSLT stylesheets (CVE-2021-38503)
* Mozilla: Use-after-free in file picker dialog (CVE-2021-38504)
* Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning (CVE-2021-38506)
* Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports (CVE-2021-38507)
* Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing (CVE-2021-38508)
* Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain (CVE-2021-38509)
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": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nThis update upgrades Firefox to version 91.3.0 ESR.\n\nSecurity Fix(es):\n\n* Mozilla: Use-after-free in HTTP2 Session object\n\n* Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3\n\n* Mozilla: iframe sandbox rules did not apply to XSLT stylesheets (CVE-2021-38503)\n\n* Mozilla: Use-after-free in file picker dialog (CVE-2021-38504)\n\n* Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning (CVE-2021-38506)\n\n* Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports (CVE-2021-38507)\n\n* Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing (CVE-2021-38508)\n\n* Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain (CVE-2021-38509)\n\nFor 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.",
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-38503",
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{
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"title": "Vulnerability description"
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{
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"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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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-38504",
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"category": "vendor_fix",
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"title": "Vulnerability description"
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{
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"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.",
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"category": "external",
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{
"category": "external",
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{
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"title": "Vulnerability description"
},
{
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"text": "Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports",
"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.",
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{
"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.",
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"category": "general",
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"url": "https://access.redhat.com/errata/RHSA-2021:4116"
}
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{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
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],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "Mozilla: Use-after-free in HTTP2 Session object"
}
]
}
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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.