RHSA-2021:2883

Vulnerability from csaf_opensuse - Published: 2021-07-26 00:00 - Updated: 2026-09-20 11:15
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-2021:2883. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:2883.
Patchnames: RHSA-2021:2883
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-2021-29969
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 8:thunderbird-0:78.12.0-3.el8_4.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2021-29970
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 1 product, the same list as for CVE-2021-29969
Threats
Impact important
CVE-2021-29976
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 1 product, the same list as for CVE-2021-29969
Threats
Impact important
CVE-2021-30547
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 1 product, the same list as for CVE-2021-29969
Threats
Impact important
References
To clipboard 

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          "text": "If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn\u0027t ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn\u0027t exist on the IMAP server. This vulnerability affects Thunderbird \u003c 78.12.",
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          "text": "A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird \u003c 78.12, Firefox ESR \u003c 78.12, and Firefox \u003c 90.",
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  ]
}



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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.



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.