It was found that in icedtea-web up to and including 1.7.2 and 1.8.2 executable code could be injected in a JAR file without compromising the signature verification. An attacker could use this flaw to inject code in a trusted JAR. The code would be executed inside the sandbox.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "1.7.2"
},
{
"introduced": "0"
},
{
"last_affected": "1.8.2"
}
]
}