Francesco Mari created OAK-3105:
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Summary: SegmentWriter doesn't properly check the length of
external blob IDs
Key: OAK-3105
URL: https://issues.apache.org/jira/browse/OAK-3105
Project: Jackrabbit Oak
Issue Type: Bug
Affects Versions: 1.0.17, 1.3.2, 1.2.2
Reporter: Francesco Mari
To store the length field of an external binary ID, the following encoding is
used:
{noformat}
1110 + 4bit + 8bit
{noformat}
which allows to store numbers between 0 and 2{^}12^ - 1.
The current implementation of {{SegmentWriter}} allows the length of binary IDs
to range between 0 and 2{^}13^ - 1, writing incorrect data when the length of
the binary ID ranges from 2{^}12^ to 2{^}13^ - 1.
When reading this incorrect data back, an {{IllegalStateException}} is thrown
complaining that the first byte of the length fields has an unexpected value
record type. See OAK-1842 for an example.
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