rhsa-2020_5239
Vulnerability from csaf_redhat
Published
2020-11-30 23:12
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 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 78.5.0 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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"category": "description",
"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"
},
{
"category": "summary",
"text": "Mozilla: Variable time processing of cross-origin images during drawImage calls",
"title": "Vulnerability summary"
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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": "self",
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},
{
"category": "external",
"summary": "RHBZ#1898732",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-16012",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16012"
},
{
"category": "external",
"summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-16012",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-16012"
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{
"category": "vendor_fix",
"date": "2020-11-30T23:12:34+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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"title": "Mozilla: Variable time processing of cross-origin images during drawImage calls"
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{
"acknowledgments": [
{
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},
{
"names": [
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"cwe": {
"id": "CWE-354",
"name": "Improper Validation of Integrity Check Value"
},
"discovery_date": "2020-11-17T00:00:00+00:00",
"ids": [
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"text": "1898731"
}
],
"notes": [
{
"category": "description",
"text": "A parsing and event loading mismatch in Firefox\u0027s SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox \u003c 83, Firefox ESR \u003c 78.5, and Thunderbird \u003c 78.5.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code",
"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",
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},
{
"category": "external",
"summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26951",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26951"
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"category": "vendor_fix",
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"title": "Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code"
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{
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},
{
"names": [
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"name": "User Interface (UI) Misrepresentation of Critical Information"
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"ids": [
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"text": "1898733"
}
],
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{
"category": "description",
"text": "It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects Firefox \u003c 83, Firefox ESR \u003c 78.5, and Thunderbird \u003c 78.5.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Fullscreen could be enabled without displaying the security UI",
"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",
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{
"category": "external",
"summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26953",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26953"
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"category": "vendor_fix",
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{
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},
{
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"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
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],
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: XSS through paste (manual and clipboard API)",
"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": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2020-26956"
},
{
"category": "external",
"summary": "RHBZ#1898734",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1898734"
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{
"category": "external",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-26956",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26956"
},
{
"category": "external",
"summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26956",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26956"
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{
"category": "vendor_fix",
"date": "2020-11-30T23:12:34+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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"title": "Mozilla: XSS through paste (manual and clipboard API)"
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"text": "Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached through a ServiceWorker. This could lead to a cross-site script inclusion vulnerability, or a Content Security Policy bypass. This vulnerability affects Firefox \u003c 83, Firefox ESR \u003c 78.5, and Thunderbird \u003c 78.5.",
"title": "Vulnerability description"
},
{
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"text": "Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions",
"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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{
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},
{
"category": "external",
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"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/#CVE-2020-26958"
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"category": "vendor_fix",
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"title": "Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions"
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{
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{
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"name": "Use After Free"
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"ids": [
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{
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"text": "During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox \u003c 83, Firefox ESR \u003c 78.5, and Thunderbird \u003c 78.5.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Use-after-free in WebRequestService",
"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": "vendor_fix",
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Mozilla: Potential use-after-free in uses of nsTArray",
"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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"text": "Mozilla: DoH did not filter IPv4 mapped IP Addresses",
"title": "Vulnerability summary"
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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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"text": "Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5",
"title": "Vulnerability summary"
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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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"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2020:5239"
}
],
"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": "Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5"
}
]
}
Loading…
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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.