USN-2547-1 (UBUNTU-CVE-2011-0992)
Vulnerability from osv_ubuntu – Published: 2015-03-24 12:44 – Updated: 2026-04-22 07:36 – Source website
VLAI
Summary
mono vulnerabilities
Details
It was discovered that the Mono TLS implementation was vulnerable to the SKIP-TLS vulnerability. A remote attacker could possibly use this issue to perform client impersonation attacks. (CVE-2015-2318)
It was discovered that the Mono TLS implementation was vulnerable to the FREAK vulnerability. A remote attacker or a machine-in-the-middle could possibly use this issue to force the use of insecure ciphersuites. (CVE-2015-2319)
It was discovered that the Mono TLS implementation still supported a fallback to SSLv2. This update removes the functionality as use of SSLv2 is known to be insecure. (CVE-2015-2320)
It was discovered that Mono incorrectly handled memory in certain circumstances. A remote attacker could possibly use this issue to cause Mono to crash, resulting in a denial of service, or to obtain sensitive information. This issue only applied to Ubuntu 12.04 LTS. (CVE-2011-0992)
It was discovered that Mono incorrectly handled hash collisions. A remote attacker could possibly use this issue to cause Mono to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS. (CVE-2012-3543)
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2015-2318",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2015-2319",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2015-2320",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
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"type": "Ubuntu"
}
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}
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"ecosystem": "Ubuntu:14.04:LTS"
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"binary_name": "libmono-xbuild-tasks2.0-cil",
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{
"binary_name": "libmono2.0-cil",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
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{
"binary_name": "libmonoboehm-2.0-1",
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{
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"binary_version": "3.2.8+dfsg-4ubuntu1.1"
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{
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"binary_version": "3.2.8+dfsg-4ubuntu1.1"
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{
"binary_name": "mono-2.0-service",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-4.0-gac",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-4.0-service",
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"binary_name": "mono-complete",
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{
"binary_name": "mono-csharp-shell",
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{
"binary_name": "mono-devel",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
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{
"binary_name": "mono-dmcs",
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"binary_version": "3.2.8+dfsg-4ubuntu1.1"
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{
"binary_name": "mono-gmcs",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-jay",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-mcs",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-runtime",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-runtime-boehm",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "mono-runtime-common",
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},
{
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"binary_version": "3.2.8+dfsg-4ubuntu1.1"
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},
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},
{
"binary_name": "monodoc-base",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
},
{
"binary_name": "monodoc-manual",
"binary_version": "3.2.8+dfsg-4ubuntu1.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "mono",
"purl": "pkg:deb/ubuntu/mono@3.2.8+dfsg-4ubuntu1.1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.8+dfsg-4ubuntu1.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.8.1-5ubuntu2",
"3.2.3+dfsg-5",
"3.2.3+dfsg-7ubuntu1",
"3.2.8+dfsg-4ubuntu1"
]
}
],
"aliases": [],
"details": "It was discovered that the Mono TLS implementation was vulnerable to the\nSKIP-TLS vulnerability. A remote attacker could possibly use this issue\nto perform client impersonation attacks. (CVE-2015-2318)\n\nIt was discovered that the Mono TLS implementation was vulnerable to the\nFREAK vulnerability. A remote attacker or a machine-in-the-middle could\npossibly use this issue to force the use of insecure ciphersuites.\n(CVE-2015-2319)\n\nIt was discovered that the Mono TLS implementation still supported a\nfallback to SSLv2. This update removes the functionality as use of SSLv2 is\nknown to be insecure. (CVE-2015-2320)\n\nIt was discovered that Mono incorrectly handled memory in certain\ncircumstances. A remote attacker could possibly use this issue to cause\nMono to crash, resulting in a denial of service, or to obtain sensitive\ninformation. This issue only applied to Ubuntu 12.04 LTS. (CVE-2011-0992)\n\nIt was discovered that Mono incorrectly handled hash collisions. A remote\nattacker could possibly use this issue to cause Mono to crash, resulting in\na denial of service. This issue only applied to Ubuntu 12.04 LTS.\n(CVE-2012-3543)\n",
"id": "USN-2547-1",
"modified": "2026-04-22T07:36:32Z",
"published": "2015-03-24T12:44:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-2547-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2011-0992"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2012-3543"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-2318"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-2319"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-2320"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "mono vulnerabilities",
"upstream": [
"UBUNTU-CVE-2011-0992",
"UBUNTU-CVE-2012-3543",
"UBUNTU-CVE-2015-2318",
"UBUNTU-CVE-2015-2319",
"UBUNTU-CVE-2015-2320"
]
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.