rhsa-2020_5237
Vulnerability from csaf_redhat
Published
2020-11-30 10:40
Modified
2024-11-22 16:03
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 78.5.0 ESR.
Security Fix(es):
* Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code (CVE-2020-26951)
* Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5 (CVE-2020-26968)
* Mozilla: Variable time processing of cross-origin images during drawImage calls (CVE-2020-16012)
* Mozilla: Fullscreen could be enabled without displaying the security UI (CVE-2020-26953)
* Mozilla: XSS through paste (manual and clipboard API) (CVE-2020-26956)
* Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions (CVE-2020-26958)
* Mozilla: Use-after-free in WebRequestService (CVE-2020-26959)
* Mozilla: Potential use-after-free in uses of nsTArray (CVE-2020-26960)
* Mozilla: DoH did not filter IPv4 mapped IP Addresses (CVE-2020-26961)
* Mozilla: Software keyboards may have remembered typed passwords (CVE-2020-26965)
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": "Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to leak cross-origin data via a crafted HTML page.",
"title": "Vulnerability description"
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{
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"text": "Mozilla: Variable time processing of cross-origin images during drawImage calls",
"title": "Vulnerability summary"
},
{
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"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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"title": "Mozilla: Software keyboards may have remembered typed passwords"
},
{
"acknowledgments": [
{
"names": [
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]
},
{
"names": [
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],
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}
],
"cve": "CVE-2020-26968",
"cwe": {
"id": "CWE-120",
"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
},
"discovery_date": "2020-11-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1898741"
}
],
"notes": [
{
"category": "description",
"text": "Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. 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 Firefox \u003c 83, Firefox ESR \u003c 78.5, and Thunderbird \u003c 78.5.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5",
"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"
}
],
"product_status": {
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"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-26968"
},
{
"category": "external",
"summary": "RHBZ#1898741",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1898741"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-26968",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26968"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-26968",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26968"
},
{
"category": "external",
"summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26968",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26968"
}
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"release_date": "2020-11-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-11-30T10:40:49+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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"restart_required": {
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"url": "https://access.redhat.com/errata/RHSA-2020:5237"
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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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"title": "Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5"
}
]
}
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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.