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Fix selfie with invalid data in some circumstances

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Reported internally.

The issue involves `removeparam` filters with a regex value. When
such filter was visited before a selfie was created, this would cause
the created selfie to persist a RegExp object, which can't be
serialized. This would cause exceptions to be thrown when uBO would
be subsequently loaded with the tainted selfie, since uBO would try
to execute a plain Object as a RegExp.
This commit is contained in:
Raymond Hill 2022-01-11 11:06:11 -05:00
parent 9b22961291
commit 8f461072f5
No known key found for this signature in database
GPG Key ID: 25E1490B761470C2
1 changed files with 4 additions and 4 deletions
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8
src/js/static-net-filtering.js
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@ -1645,7 +1645,7 @@ const FilterModifier = class {
filterData[idata+2] = args[2]; // type
filterData[idata+3] = filterRefAdd({
value: args[3],
cache: null,
$cache: null,
});
return idata;
}
@ -1694,11 +1694,11 @@ const FilterModifierResult = class {
}
get cache() {
return this.refs.cache;
return this.refs.$cache;
}
set cache(a) {
this.refs.cache = a;
this.refs.$cache = a;
}
logData() {
@ -3523,7 +3523,7 @@ FilterCompiler.prototype.FILTER_UNSUPPORTED = 2;
const FilterContainer = function() {
this.compilerVersion = '8';
this.selfieVersion = '8';
this.selfieVersion = '9';
this.MAX_TOKEN_LENGTH = MAX_TOKEN_LENGTH;
this.optimizeTaskId = undefined;