phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack
The advisory, in context
Impact
Those using AES in CBC mode may be susceptible to a padding oracle timing attack.
Patches
https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788
Workarounds
Use AES in CTR, CFB or OFB modes
References
https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788
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 3.0.0 before 3.0.50
Fixed in 3.0.50
41 explicitly affected versions
3.0.0, 3.0.1, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 3.0.19, 3.0.2, 3.0.20, 3.0.21, 3.0.22, 3.0.23, 3.0.3, 3.0.33, 3.0.34, 3.0.35, 3.0.36, 3.0.37, 3.0.38, 3.0.39, 3.0.4, 3.0.40, 3.0.41, 3.0.42, 3.0.43, 3.0.44, 3.0.45, 3.0.46, 3.0.47, 3.0.48, 3.0.49, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.50"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.0",
"3.0.1",
"3.0.10",
"3.0.11",
"3.0.12",
"3.0.13",
"3.0.14",
"3.0.15",
"3.0.16",
"3.0.17",
"3.0.18",
"3.0.19",
"3.0.2",
"3.0.20",
"3.0.21",
"3.0.22",
"3.0.23",
"3.0.3",
"3.0.33",
"3.0.34",
"3.0.35",
"3.0.36",
"3.0.37",
"3.0.38",
"3.0.39",
"3.0.4",
"3.0.40",
"3.0.41",
"3.0.42",
"3.0.43",
"3.0.44",
"3.0.45",
"3.0.46",
"3.0.47",
"3.0.48",
"3.0.49",
"3.0.5",
"3.0.6",
"3.0.7",
"3.0.8",
"3.0.9"
]
}From 2.0.0 before 2.0.52
Fixed in 2.0.52
52 explicitly affected versions
2.0.0, 2.0.1, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.14, 2.0.15, 2.0.16, 2.0.17, 2.0.18, 2.0.19, 2.0.2, 2.0.20, 2.0.21, 2.0.22, 2.0.23, 2.0.24, 2.0.25, 2.0.26, 2.0.27, 2.0.28, 2.0.29, 2.0.3, 2.0.30, 2.0.31, 2.0.32, 2.0.33, 2.0.34, 2.0.35, 2.0.36, 2.0.37, 2.0.38, 2.0.39, 2.0.4, 2.0.40, 2.0.41, 2.0.42, 2.0.43, 2.0.44, 2.0.45, 2.0.46, 2.0.47, 2.0.48, 2.0.49, 2.0.5, 2.0.50, 2.0.51, 2.0.6, 2.0.7, 2.0.8, 2.0.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.52"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0",
"2.0.1",
"2.0.10",
"2.0.11",
"2.0.12",
"2.0.13",
"2.0.14",
"2.0.15",
"2.0.16",
"2.0.17",
"2.0.18",
"2.0.19",
"2.0.2",
"2.0.20",
"2.0.21",
"2.0.22",
"2.0.23",
"2.0.24",
"2.0.25",
"2.0.26",
"2.0.27",
"2.0.28",
"2.0.29",
"2.0.3",
"2.0.30",
"2.0.31",
"2.0.32",
"2.0.33",
"2.0.34",
"2.0.35",
"2.0.36",
"2.0.37",
"2.0.38",
"2.0.39",
"2.0.4",
"2.0.40",
"2.0.41",
"2.0.42",
"2.0.43",
"2.0.44",
"2.0.45",
"2.0.46",
"2.0.47",
"2.0.48",
"2.0.49",
"2.0.5",
"2.0.50",
"2.0.51",
"2.0.6",
"2.0.7",
"2.0.8",
"2.0.9"
]
}From 0.1.1 before 1.0.27
Fixed in 1.0.27
35 explicitly affected versions
0.3.0, 0.3.1, 0.3.10, 0.3.5, 0.3.6, 0.3.7, 0.3.8, 0.3.9, 1.0.0, 1.0.1, 1.0.10, 1.0.11, 1.0.12, 1.0.13, 1.0.14, 1.0.15, 1.0.16, 1.0.17, 1.0.18, 1.0.19, 1.0.2, 1.0.20, 1.0.21, 1.0.22, 1.0.23, 1.0.24, 1.0.25, 1.0.26, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0.1.1"
},
{
"fixed": "1.0.27"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.3.0",
"0.3.1",
"0.3.10",
"0.3.5",
"0.3.6",
"0.3.7",
"0.3.8",
"0.3.9",
"1.0.0",
"1.0.1",
"1.0.10",
"1.0.11",
"1.0.12",
"1.0.13",
"1.0.14",
"1.0.15",
"1.0.16",
"1.0.17",
"1.0.18",
"1.0.19",
"1.0.2",
"1.0.20",
"1.0.21",
"1.0.22",
"1.0.23",
"1.0.24",
"1.0.25",
"1.0.26",
"1.0.3",
"1.0.4",
"1.0.5",
"1.0.6",
"1.0.7",
"1.0.8",
"1.0.9"
]
}