ubuntu-cve-2016-5261
Vulnerability from osv_ubuntu
Published
2016-08-03 00:00
Modified
2026-04-22 07:38
Summary
Details
Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.
Severity
8.8 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "48.0+build2-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-globalmenu",
"binary_version": "48.0+build2-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "48.0+build2-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-testsuite",
"binary_version": "48.0+build2-0ubuntu0.14.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "firefox",
"purl": "pkg:deb/ubuntu/firefox@48.0+build2-0ubuntu0.14.04.1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "48.0+build2-0ubuntu0.14.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"24.0+build1-0ubuntu1",
"25.0+build3-0ubuntu0.13.10.1",
"28.0~b2+build1-0ubuntu2",
"28.0+build1-0ubuntu1",
"28.0+build2-0ubuntu1",
"28.0+build2-0ubuntu2",
"29.0+build1-0ubuntu0.14.04.2",
"30.0+build1-0ubuntu0.14.04.3",
"31.0+build1-0ubuntu0.14.04.1",
"32.0+build1-0ubuntu0.14.04.1",
"32.0.3+build1-0ubuntu0.14.04.1",
"33.0+build2-0ubuntu0.14.04.1",
"34.0+build2-0ubuntu0.14.04.1",
"35.0+build3-0ubuntu0.14.04.2",
"35.0.1+build1-0ubuntu0.14.04.1",
"36.0+build2-0ubuntu0.14.04.4",
"36.0.1+build2-0ubuntu0.14.04.1",
"36.0.4+build1-0ubuntu0.14.04.1",
"37.0+build2-0ubuntu0.14.04.1",
"37.0.1+build1-0ubuntu0.14.04.1",
"37.0.2+build1-0ubuntu0.14.04.1",
"38.0+build3-0ubuntu0.14.04.1",
"39.0+build5-0ubuntu0.14.04.1",
"39.0.3+build2-0ubuntu0.14.04.1",
"40.0+build4-0ubuntu0.14.04.1",
"40.0+build4-0ubuntu0.14.04.4",
"40.0.3+build1-0ubuntu0.14.04.1",
"41.0+build3-0ubuntu0.14.04.1",
"41.0.1+build2-0ubuntu0.14.04.1",
"41.0.2+build2-0ubuntu0.14.04.1",
"42.0+build2-0ubuntu0.14.04.1",
"43.0+build1-0ubuntu0.14.04.1",
"43.0.4+build3-0ubuntu0.14.04.1",
"44.0+build3-0ubuntu0.14.04.1",
"44.0.1+build2-0ubuntu0.14.04.1",
"44.0.2+build1-0ubuntu0.14.04.1",
"45.0+build2-0ubuntu0.14.04.1",
"45.0.1+build1-0ubuntu0.14.04.2",
"45.0.2+build1-0ubuntu0.14.04.1",
"46.0+build5-0ubuntu0.14.04.2",
"46.0.1+build1-0ubuntu0.14.04.3",
"47.0+build3-0ubuntu0.14.04.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "48.0+build2-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-globalmenu",
"binary_version": "48.0+build2-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "48.0+build2-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-testsuite",
"binary_version": "48.0+build2-0ubuntu0.16.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "firefox",
"purl": "pkg:deb/ubuntu/firefox@48.0+build2-0ubuntu0.16.04.1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "48.0+build2-0ubuntu0.16.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"41.0.2+build2-0ubuntu1",
"42.0+build2-0ubuntu1",
"44.0+build3-0ubuntu2",
"44.0.1+build1-0ubuntu1",
"44.0.2+build1-0ubuntu1",
"45.0+build2-0ubuntu1",
"45.0.1+build1-0ubuntu1",
"45.0.2+build1-0ubuntu1",
"46.0+build5-0ubuntu0.16.04.2",
"46.0.1+build1-0ubuntu0.16.04.2",
"47.0+build3-0ubuntu0.16.04.1"
]
}
],
"aliases": [],
"details": "Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR \u003c 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.",
"id": "UBUNTU-CVE-2016-5261",
"modified": "2026-04-22T07:38:00Z",
"published": "2016-08-03T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-5261"
},
{
"type": "REPORT",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2016-75/"
},
{
"type": "REPORT",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1287266"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3044-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2016-5261"
}
],
"related": [
"USN-3044-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2016-5261"
]
}
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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.
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