gsd-2015-2721
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2015-2721",
"description": "Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a \"SMACK SKIP-TLS\" issue.",
"id": "GSD-2015-2721",
"references": [
"https://www.suse.com/security/cve/CVE-2015-2721.html",
"https://www.debian.org/security/2015/dsa-3336",
"https://www.debian.org/security/2015/dsa-3324",
"https://access.redhat.com/errata/RHSA-2015:1664",
"https://access.redhat.com/errata/RHSA-2015:1185",
"https://ubuntu.com/security/CVE-2015-2721",
"https://advisories.mageia.org/CVE-2015-2721.html",
"https://linux.oracle.com/cve/CVE-2015-2721.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2015-2721",
"modified": "2023-12-13T01:20:00.754494Z",
"schema_version": "1.4.0"
}
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},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
}
},
"lastModifiedDate": "2023-09-12T14:55Z",
"publishedDate": "2015-07-06T02:00Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.