rhsa-2021_1362
Vulnerability from csaf_redhat
Published
2021-04-26 11:17
Modified
2024-11-22 16:48
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 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 78.10.0 ESR. Security Fix(es): * Mozilla: Out of bound write due to lazy initialization (CVE-2021-23994) * Mozilla: Use-after-free in Responsive Design Mode (CVE-2021-23995) * Mozilla: More internal network hosts could have been probed by a malicious webpage (CVE-2021-23961) * Mozilla: Secure Lock icon could have been spoofed (CVE-2021-23998) * Mozilla: Blob URLs may have been granted additional privileges (CVE-2021-23999) * Mozilla: Arbitrary FTP command execution on FTP servers using an encoded URL (CVE-2021-24002) * Mozilla: Incorrect size computation in WebAssembly JIT could lead to null-reads (CVE-2021-29945) * Mozilla: Port blocking could be bypassed (CVE-2021-29946) 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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  "vulnerabilities": [
    {
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            "Samy Kamkar",
            "Ben Seri",
            "Gregory Vishnepolsky"
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        }
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      "cve": "CVE-2021-23961",
      "cwe": {
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        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
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      "ids": [
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          "text": "1951367"
        }
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      "notes": [
        {
          "category": "description",
          "text": "Further techniques that built on the slipstream research combined with a malicious webpage could have exposed both an internal network\u0027s hosts as well as services running on the user\u0027s local machine. This vulnerability affects Firefox \u003c 85.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: More internal network hosts could have been probed by a malicious webpage",
          "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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      "title": "Mozilla: Port blocking could be bypassed"
    }
  ]
}


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