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| author | Egbert Eich <eich@suse.com> | 2022-11-11 05:24:56 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-11 05:24:56 (GMT) |
| commit | 1750b4b0af5158009aa2f861c65fb4bf8fc364de (patch) | |
| tree | 9a9c42da178803b882a03a6602efd9c48a112c23 /.github | |
| parent | 659bc99fd139e16fdf47b31b635f158b72e3f5a4 (diff) | |
| download | hdf5-1750b4b0af5158009aa2f861c65fb4bf8fc364de.zip hdf5-1750b4b0af5158009aa2f861c65fb4bf8fc364de.tar.gz hdf5-1750b4b0af5158009aa2f861c65fb4bf8fc364de.tar.bz2 | |
Validate location (offset) of the accumulated metadata when comparing (#2231)
Initially, the accumulated metadata location is initialized to HADDR_UNDEF
- the highest available address. Bogus input files may provide a location
or size matching this value. Comparing this address against such bogus
values may provide false positives. This make sure, the value has been
initilized or fail the comparison early and let other parts of the
code deal with the bogus address/size.
Note: To avoid unnecessary checks, we have assumed that if the 'dirty'
member in the same structure is true the location is valid.
This fixes CVE-2018-13867 / Bug #2230.
Signed-off-by: Egbert Eich <eich@suse.com>
Diffstat (limited to '.github')
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