csaf_redhat - rhsa-2020

rhsa-2020_5139

Vulnerability from csaf_redhat

Published

2020-11-17 21:29

Modified

2024-11-22 16:00

Summary

Red Hat Security Advisory: firefox security update

Notes

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.2 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 78.4.1 ESR. Security Fix(es): * Mozilla: Write side effects in MCallGetProperty opcode not accounted for (CVE-2020-26950) 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.

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.

JSON

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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "the Mozilla project"
          ]
        },
        {
          "names": [
            "360\u653f\u4f01\u5b89\u5168\u6f0f\u6d1e\u7814\u7a76\u9662 in Tianfu Cup 2020 International Cybersecurity Contest"
          ],
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      "cve": "CVE-2020-26950",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
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      "ids": [
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          "text": "1896306"
        }
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      "notes": [
        {
          "category": "description",
          "text": "In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox \u003c 82.0.3, Firefox ESR \u003c 78.4.1, and Thunderbird \u003c 78.4.2.",
          "title": "Vulnerability description"
        },
        {
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          "text": "Mozilla: Write side effects in MCallGetProperty opcode not accounted for",
          "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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          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-26950",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-26950"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-26950",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26950"
        },
        {
          "category": "external",
          "summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/#CVE-2020-26950",
          "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/#CVE-2020-26950"
        }
      ],
      "release_date": "2020-11-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-11-17T21:29:27+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.",
          "product_ids": [
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            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.ppc64le",
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.s390x",
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.src",
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.x86_64",
            "AppStream-8.2.0.Z.EUS:firefox-debuginfo-0:78.4.1-1.el8_2.aarch64",
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            "AppStream-8.2.0.Z.EUS:firefox-debugsource-0:78.4.1-1.el8_2.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:5139"
        }
      ],
      "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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.aarch64",
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.ppc64le",
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.s390x",
            "AppStream-8.2.0.Z.EUS:firefox-0:78.4.1-1.el8_2.src",
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            "AppStream-8.2.0.Z.EUS:firefox-debugsource-0:78.4.1-1.el8_2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "Mozilla: Write side effects in MCallGetProperty opcode not accounted for"
    }
  ]
}

cve-2020-26950

Vulnerability from cvelistv5

Published

2020-12-09 00:19

Modified

2024-08-04 16:03

Severity ?

Summary

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.

References

▼	URL	Tags
	https://bugzilla.mozilla.org/show_bug.cgi?id=1675905	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2020-49/	x_refsource_CONFIRM
	http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html	x_refsource_MISC

Impacted products

▼	Vendor	Product
	Mozilla	Firefox
	Mozilla	Firefox ESR
	Mozilla	Thunderbird

Show details on NVD website

JSON

To clipboard

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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.

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