RHSA-2021:0656

Vulnerability from csaf_opensuse - Published: 2021-02-24 00:00 - Updated: 2026-09-20 11:13
Summary
security update for firefox
Severity
Critical
Notes
Title of the patch: security update for firefox
Description of the patch: This security update provides a functional equivalent of RHSA-2021:0656. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:0656.
Patchnames: RHSA-2021:0656
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2021-23968
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2021-23969
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected products
Recommended 2 products, the same list as for CVE-2021-23968
Threats
Impact important
CVE-2021-23973
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
Recommended 2 products, the same list as for CVE-2021-23968
Threats
Impact important
CVE-2021-23978
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Recommended 2 products, the same list as for CVE-2021-23968
Threats
Impact important
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "Critical"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "security update for firefox",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This security update provides a functional equivalent of RHSA-2021:0656.\nThe original Red Hat(R) advisory is available from the Red Hat web site at\nhttps://access.redhat.com/errata/RHSA-2021:0656.\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "RHSA-2021:0656",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_0656.json"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-23968 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-23968/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-23969 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-23969/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-23973 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-23973/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2021-23978 page",
        "url": "https://www.suse.com/security/cve/CVE-2021-23978/"
      }
    ],
    "title": "security update for firefox",
    "tracking": {
      "current_release_date": "2026-09-20T11:13:35Z",
      "generator": {
        "date": "2021-02-24T00:00:00Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "RHSA-2021:0656",
      "initial_release_date": "2021-02-24T00:00:00Z",
      "revision_history": [
        {
          "date": "2021-02-24T00:00:00Z",
          "number": "1",
          "summary": "Current version"
        },
        {
          "date": "2026-09-20T11:13:35Z",
          "number": "2",
          "summary": "unknown changes"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "firefox-0:78.8.0-1.el7_9.i686",
                "product": {
                  "name": "firefox-0:78.8.0-1.el7_9.i686",
                  "product_id": "firefox-0:78.8.0-1.el7_9.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/suse/firefox@78.8.0-1.el7_9?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "firefox-0:78.8.0-1.el7_9.x86_64",
                "product": {
                  "name": "firefox-0:78.8.0-1.el7_9.x86_64",
                  "product_id": "firefox-0:78.8.0-1.el7_9.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/suse/firefox@78.8.0-1.el7_9?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Liberty Linux 7",
                "product": {
                  "name": "SUSE Liberty Linux 7",
                  "product_id": "SUSE Liberty Linux 7",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sll:7"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "firefox-0:78.8.0-1.el7_9.i686 as component of SUSE Liberty Linux 7",
          "product_id": "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686"
        },
        "product_reference": "firefox-0:78.8.0-1.el7_9.i686",
        "relates_to_product_reference": "SUSE Liberty Linux 7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "firefox-0:78.8.0-1.el7_9.x86_64 as component of SUSE Liberty Linux 7",
          "product_id": "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
        },
        "product_reference": "firefox-0:78.8.0-1.el7_9.x86_64",
        "relates_to_product_reference": "SUSE Liberty Linux 7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-23968",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-23968"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox \u003c 86, Thunderbird \u003c 78.8, and Firefox ESR \u003c 78.8.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-23968",
          "url": "https://www.suse.com/security/cve/CVE-2021-23968"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182614 for CVE-2021-23968",
          "url": "https://bugzilla.suse.com/1182614"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-02-24T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-23968"
    },
    {
      "cve": "CVE-2021-23969",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-23969"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "As specified in the W3C Content Security Policy draft, when creating a violation report, \"User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that\u0027s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage.\" Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination\u0027s origin. This vulnerability affects Firefox \u003c 86, Thunderbird \u003c 78.8, and Firefox ESR \u003c 78.8.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-23969",
          "url": "https://www.suse.com/security/cve/CVE-2021-23969"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182614 for CVE-2021-23969",
          "url": "https://bugzilla.suse.com/1182614"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-02-24T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-23969"
    },
    {
      "cve": "CVE-2021-23973",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-23973"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox \u003c 86, Thunderbird \u003c 78.8, and Firefox ESR \u003c 78.8.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-23973",
          "url": "https://www.suse.com/security/cve/CVE-2021-23973"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182614 for CVE-2021-23973",
          "url": "https://bugzilla.suse.com/1182614"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-02-24T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-23973"
    },
    {
      "cve": "CVE-2021-23978",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-23978"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u003c 86, Thunderbird \u003c 78.8, and Firefox ESR \u003c 78.8.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
          "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-23978",
          "url": "https://www.suse.com/security/cve/CVE-2021-23978"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1182614 for CVE-2021-23978",
          "url": "https://bugzilla.suse.com/1182614"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.i686",
            "SUSE Liberty Linux 7:firefox-0:78.8.0-1.el7_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-02-24T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-23978"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.