RHSA-2021:4130

Vulnerability from csaf_opensuse - Published: 2021-11-04 00:00 - Updated: 2026-09-20 11:17
Summary
security update for thunderbird
Severity
Important
Notes
Title of the patch: security update for thunderbird
Description of the patch: This security update provides a functional equivalent of RHSA-2021:4130. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:4130.
Patchnames: RHSA-2021:4130
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64 —
Vendor Fix
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
Affected products
Recommended 1 product, the same list as for CVE-2021-38503
Threats
Impact important
References
URL Category
https://www.suse.com/support/security/rating/ external
https://ftp.suse.com/pub/projects/security/csaf/r… self
https://www.suse.com/security/cve/CVE-2021-38503/ self
https://www.suse.com/security/cve/CVE-2021-38504/ self
https://www.suse.com/security/cve/CVE-2021-38506/ self
https://www.suse.com/security/cve/CVE-2021-38507/ self
https://www.suse.com/security/cve/CVE-2021-38508/ self
https://www.suse.com/security/cve/CVE-2021-38509/ self
https://www.suse.com/security/cve/CVE-2021-43529/ self
https://www.suse.com/security/cve/CVE-2021-43534/ self
https://www.suse.com/security/cve/CVE-2021-43535/ self
https://www.suse.com/security/cve/CVE-2021-38503 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-38504 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-38506 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-38507 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-38508 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-38509 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-43529 external
https://bugzilla.suse.com/1193485 external
https://www.suse.com/security/cve/CVE-2021-43534 external
https://bugzilla.suse.com/1192250 external
https://www.suse.com/security/cve/CVE-2021-43535 external
https://bugzilla.suse.com/1193685 external

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  "vulnerabilities": [
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      ],
      "notes": [
        {
          "category": "general",
          "text": "The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
        }
      ],
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        {
          "category": "general",
          "text": "When interacting with an HTML input element\u0027s file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
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      ],
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        {
          "category": "general",
          "text": "Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
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      "title": "CVE-2021-38506"
    },
    {
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2021-38507"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port 8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the browser to port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin with HTTP. This was resolved by disabling the Opportunistic Encryption feature, which had low usage. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
        }
      ],
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          "url": "https://www.suse.com/security/cve/CVE-2021-38507"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1192250 for CVE-2021-38507",
          "url": "https://bugzilla.suse.com/1192250"
        }
      ],
      "remediations": [
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          "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 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
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        {
          "category": "general",
          "text": "By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
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    },
    {
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          "text": "https://www.suse.com/security/cve/CVE-2021-38509"
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      ],
      "notes": [
        {
          "category": "general",
          "text": "Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker\u0027s choosing. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-38509",
          "url": "https://www.suse.com/security/cve/CVE-2021-38509"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1192250 for CVE-2021-38509",
          "url": "https://bugzilla.suse.com/1192250"
        }
      ],
      "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 8:thunderbird-0:91.3.0-2.el8_4.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:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-11-04T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-38509"
    },
    {
      "cve": "CVE-2021-43529",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-43529"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-43529",
          "url": "https://www.suse.com/security/cve/CVE-2021-43529"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1193485 for CVE-2021-43529",
          "url": "https://bugzilla.suse.com/1193485"
        }
      ],
      "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 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-11-04T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-43529"
    },
    {
      "cve": "CVE-2021-43534",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-43534"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. 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 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-43534",
          "url": "https://www.suse.com/security/cve/CVE-2021-43534"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1192250 for CVE-2021-43534",
          "url": "https://bugzilla.suse.com/1192250"
        }
      ],
      "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 8:thunderbird-0:91.3.0-2.el8_4.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 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-11-04T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-43534"
    },
    {
      "cve": "CVE-2021-43535",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-43535"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox \u003c 93, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-43535",
          "url": "https://www.suse.com/security/cve/CVE-2021-43535"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1193685 for CVE-2021-43535",
          "url": "https://bugzilla.suse.com/1193685"
        }
      ],
      "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 8:thunderbird-0:91.3.0-2.el8_4.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 8:thunderbird-0:91.3.0-2.el8_4.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-11-04T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-43535"
    }
  ]
}



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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.

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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.


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