Moodle Client side denial of service via personal message
The advisory, in context
It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
From 3.5 before 3.5.16
Fixed in 3.5.16
18 explicitly affected versions
v3.5.0, v3.5.0-beta, v3.5.0-rc1, v3.5.1, v3.5.10, v3.5.11, v3.5.12, v3.5.13, v3.5.14, v3.5.15, v3.5.2, v3.5.3, v3.5.4, v3.5.5, v3.5.6, v3.5.7, v3.5.8, v3.5.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.5"
},
{
"fixed": "3.5.16"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.5.0",
"v3.5.0-beta",
"v3.5.0-rc1",
"v3.5.1",
"v3.5.10",
"v3.5.11",
"v3.5.12",
"v3.5.13",
"v3.5.14",
"v3.5.15",
"v3.5.2",
"v3.5.3",
"v3.5.4",
"v3.5.5",
"v3.5.6",
"v3.5.7",
"v3.5.8",
"v3.5.9"
]
}From 3.8 before 3.8.7
Fixed in 3.8.7
9 explicitly affected versions
v3.8.0, v3.8.0-beta, v3.8.0-rc1, v3.8.1, v3.8.2, v3.8.3, v3.8.4, v3.8.5, v3.8.6
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.8"
},
{
"fixed": "3.8.7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.8.0",
"v3.8.0-beta",
"v3.8.0-rc1",
"v3.8.1",
"v3.8.2",
"v3.8.3",
"v3.8.4",
"v3.8.5",
"v3.8.6"
]
}From 3.9 before 3.9.4
Fixed in 3.9.4
8 explicitly affected versions
v3.9.0, v3.9.0-beta, v3.9.0-rc1, v3.9.0-rc2, v3.9.0-rc3, v3.9.1, v3.9.2, v3.9.3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.9"
},
{
"fixed": "3.9.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.9.0",
"v3.9.0-beta",
"v3.9.0-rc1",
"v3.9.0-rc2",
"v3.9.0-rc3",
"v3.9.1",
"v3.9.2",
"v3.9.3"
]
}From 3.10 before 3.10.1
Fixed in 3.10.1
4 explicitly affected versions
v3.10.0, v3.10.0-beta, v3.10.0-rc1, v3.10.0-rc2
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.10"
},
{
"fixed": "3.10.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v3.10.0",
"v3.10.0-beta",
"v3.10.0-rc1",
"v3.10.0-rc2"
]
}