rhsa-2021_2741
Vulnerability from csaf_redhat
Published
2021-07-15 10:58
Modified
2024-11-22 17:16
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 78.12.0 ESR.
Security Fix(es):
* Mozilla: Use-after-free in accessibility features of a document (CVE-2021-29970)
* Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 (CVE-2021-29976)
* chromium-browser: Out of bounds write in ANGLE (CVE-2021-30547)
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": "A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird \u003c 78.12, Firefox ESR \u003c 78.12, and Firefox \u003c 90.",
"title": "Vulnerability description"
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"text": "Mozilla: Use-after-free in accessibility features of a document",
"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: Use-after-free in accessibility features of a document"
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{
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"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
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"text": "Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. 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. This vulnerability affects Thunderbird \u003c 78.12, Firefox ESR \u003c 78.12, and Firefox \u003c 90.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12",
"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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{
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"ids": [
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"title": "Vulnerability description"
},
{
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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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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-30547"
},
{
"category": "external",
"summary": "RHBZ#1970109",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970109"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-30547",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-30547"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-30547",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30547"
}
],
"release_date": "2021-06-09T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-07-15T10:58:26+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.",
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"url": "https://access.redhat.com/errata/RHSA-2021:2741"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"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": "chromium-browser: Out of bounds write in ANGLE"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.