rhsa-2021_0991
Vulnerability from csaf_redhat
Published
2021-03-25 12:33
Modified
2024-11-05 23:25
Summary
Red Hat Security Advisory: firefox security update

Notes

Topic
An update for firefox is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. 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 78.9.0 ESR. Security Fix(es): * Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981) * Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987) * Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982) * Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984) 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 78.9.0 ESR.\n\nSecurity Fix(es):\n\n* Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981)\n\n* Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987)\n\n* Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982)\n\n* Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984)\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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  "vulnerabilities": [
    {
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            "Abraruddin Khan and Omair"
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      "cve": "CVE-2021-4127",
      "cwe": {
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        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
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      "ids": [
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          "text": "1942784"
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        {
          "category": "description",
          "text": "The Mozilla Foundation Security Advisory describes this issue as:\r\n\r\nAn out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: Angle graphics library out of date",
          "title": "Vulnerability summary"
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        {
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          "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.",
          "title": "Statement"
        },
        {
          "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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      "title": "Mozilla: Internal network hosts could have been probed by a malicious webpage"
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      "release_date": "2021-03-23T00:00:00+00:00",
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          "category": "vendor_fix",
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      "scores": [
        {
          "cvss_v3": {
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            "integrityImpact": "LOW",
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            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
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      "title": "Mozilla: Malicious extensions could have spoofed popup information"
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      "acknowledgments": [
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          "names": [
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          "names": [
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        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "discovery_date": "2021-03-23T00:00:00+00:00",
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      "title": "Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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