RHSA-2020:2966
Vulnerability from csaf_redhat - Published: 2020-07-16 07:42 - Updated: 2026-06-25 10:56Summary
Red Hat Security Advisory: thunderbird security update
Severity
Important
Notes
Topic: An update for thunderbird is now available for Red Hat Enterprise Linux 6.
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 Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 68.10.0.
Security Fix(es):
* Mozilla: Information disclosure due to manipulated URL object (CVE-2020-12418)
* Mozilla: Use-after-free in nsGlobalWindowInner (CVE-2020-12419)
* Mozilla: Use-After-Free when trying to connect to a STUN server (CVE-2020-12420)
* Mozilla: Add-On updates did not respect the same certificate trust rules as software updates (CVE-2020-12421)
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.
The Mozilla Foundation Security Advisory describes this flaw as: Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript.
6.5 (Medium)
Affected products
Fixed
19 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 6Client-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Client-6.10.z:thunderbird-0:68.10.0-1.el6_10.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Client-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Client-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Client-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.ppc64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.ppc64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Workstation-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Workstation-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
The Mozilla Foundation Security Advisory describes this flaw as: When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash.
8.8 (High)
Affected products
Fixed
19 products, the same list as for
CVE-2020-12418
Threats
Impact
Important
The Mozilla Foundation Security Advisory describes this flaw as: When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash.
8.8 (High)
Affected products
Fixed
19 products, the same list as for
CVE-2020-12418
Threats
Impact
Important
The Mozilla Foundation Security Advisory describes this flaw as: When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user.
6.1 (Medium)
Affected products
Fixed
19 products, the same list as for
CVE-2020-12418
Threats
Impact
Moderate
If an attacker intercepts Thunderbird's initial attempt to perform automatic account setup using the Microsoft Exchange autodiscovery mechanism, and the attacker sends a crafted response, then Thunderbird sends username and password over https to a server controlled by the attacker. This vulnerability affects Thunderbird < 68.10.0.
5.9 (Medium)
Affected products
Fixed
19 products, the same list as for
CVE-2020-12418
Threats
Impact
Important
References
32 references
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"6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686",
"6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.src",
"6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64",
"6Workstation-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686",
"6Workstation-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:2966"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"6Client-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686",
"6Client-6.10.z:thunderbird-0:68.10.0-1.el6_10.src",
"6Client-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64",
"6Client-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686",
"6Client-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64",
"6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686",
"6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.ppc64",
"6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.s390x",
"6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.src",
"6Server-optional-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64",
"6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686",
"6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.ppc64",
"6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.s390x",
"6Server-optional-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64",
"6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.i686",
"6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.src",
"6Workstation-6.10.z:thunderbird-0:68.10.0-1.el6_10.x86_64",
"6Workstation-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.i686",
"6Workstation-6.10.z:thunderbird-debuginfo-0:68.10.0-1.el6_10.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "Mozilla: Automatic account setup leaks Microsoft Exchange login credentials"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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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