GSD-2021-29976
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. 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 Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-29976",
"description": "Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. 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 Thunderbird \u003c 78.12, Firefox ESR \u003c 78.12, and Firefox \u003c 90.",
"id": "GSD-2021-29976",
"references": [
"https://www.suse.com/security/cve/CVE-2021-29976.html",
"https://www.debian.org/security/2021/dsa-4940",
"https://www.debian.org/security/2021/dsa-4939",
"https://access.redhat.com/errata/RHSA-2021:2914",
"https://access.redhat.com/errata/RHSA-2021:2883",
"https://access.redhat.com/errata/RHSA-2021:2882",
"https://access.redhat.com/errata/RHSA-2021:2881",
"https://access.redhat.com/errata/RHSA-2021:2743",
"https://access.redhat.com/errata/RHSA-2021:2742",
"https://access.redhat.com/errata/RHSA-2021:2741",
"https://access.redhat.com/errata/RHSA-2021:2740",
"https://ubuntu.com/security/CVE-2021-29976",
"https://advisories.mageia.org/CVE-2021-29976.html",
"https://security.archlinux.org/CVE-2021-29976",
"https://linux.oracle.com/cve/CVE-2021-29976.html"
]
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"modified": "2023-12-13T01:23:36.906992Z",
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"impact": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
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"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
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"severity": "MEDIUM",
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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},
"lastModifiedDate": "2022-12-09T19:07Z",
"publishedDate": "2021-08-05T20:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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