rhsa-2020_5562
Vulnerability from csaf_redhat
Published
2020-12-16 07:57
Modified
2024-11-10 18:11
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 78.6.0 ESR. Security Fix(es): * chromium-browser: Uninitialized Use in V8 (CVE-2020-16042) * Mozilla: Heap buffer overflow in WebGL (CVE-2020-26971) * Mozilla: CSS Sanitizer performed incorrect sanitization (CVE-2020-26973) * Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free (CVE-2020-26974) * Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6 (CVE-2020-35113) * Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2020-26978) * Mozilla: The proxy.onRequest API did not catch view-source URLs (CVE-2020-35111) 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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      "discovery_date": "2020-12-04T00:00:00+00:00",
      "ids": [
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          "text": "1904515"
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      "notes": [
        {
          "category": "description",
          "text": "The Mozilla Foundation Security Advisory describes this flaw as:\r\n\r\nWhen a BigInt was right-shifted the backing store was not properly cleared, allowing uninitialized memory to be read.",
          "title": "Vulnerability description"
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          "text": "chromium-browser: Uninitialized Use in V8",
          "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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          "details": "Low"
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      ],
      "title": "Mozilla: The proxy.onRequest API did not catch view-source URLs"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "the Mozilla project"
          ]
        },
        {
          "names": [
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      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "discovery_date": "2020-12-15T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1908029"
        }
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      "notes": [
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6",
          "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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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-35113"
        },
        {
          "category": "external",
          "summary": "RHBZ#1908029",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1908029"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-35113",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-35113"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-35113",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35113"
        },
        {
          "category": "external",
          "summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-55/#CVE-2020-35113",
          "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-55/#CVE-2020-35113"
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      "release_date": "2020-12-15T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-12-16T07:57:21+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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            "attackVector": "NETWORK",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
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      "title": "Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6"
    }
  ]
}


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