m-holger
4f694cdfde
In qpdf_fuzzer reduce Pl_PNGFilter and Pl_TIFFPredictor memory limits
2024-07-22 13:25:21 +01:00
m-holger
4f16961052
In MD5_native::transform disable sanitizer unsigned integer overflow checks
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Wrap-around is intentional and generates false positives
2024-07-22 13:11:07 +01:00
m-holger
b3ab5cd216
Merge pull request #1248 from m-holger/hk
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Update TODO.md
2024-07-20 15:21:00 +01:00
m-holger
16fe38b8e3
Update TODO.md with pages tree / fuzz discussions
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Also, remove closed fuzz cases.
2024-07-19 15:04:47 +01:00
m-holger
9ce18e41f4
Merge pull request #979 from m-holger/const
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In FUTURE make various QPDFObjectHandle methods const
2024-07-19 10:50:08 +01:00
m-holger
5be057caf0
Merge pull request #1247 from m-holger/fuzz
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Adjust fuzzer warning and memory limits
2024-07-18 22:24:54 +01:00
m-holger
9ac506509b
Merge pull request #1240 from m-holger/i1238
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Fix QPDFOutlineDocumentHelper::resolveNamedDest (fixes #1238 )
2024-07-18 22:24:16 +01:00
m-holger
30e187b458
Rename fuzz test case
2024-07-18 16:50:37 +01:00
m-holger
34729e37e0
Limit memory used by Pl_PNGFilter and Pl_TIFFPredictor during fuzzing
2024-07-18 16:50:30 +01:00
m-holger
fe1fffe8db
Change QPDF max_warnings into a hard limit
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Throw damagedFile if max_warnings is exceeded. Change qpdf_fuzzer warnings limit to
limit to 500.
2024-07-18 16:50:08 +01:00
m-holger
bcf81a1423
Merge pull request #1242 from m-holger/fuzz
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Tighten page tree checks
2024-07-17 00:59:56 +01:00
m-holger
992b7911ce
Limit the number of warnings in json_fuzzer before giving up
2024-07-16 15:36:58 +01:00
m-holger
e14e828c3d
Add further fuzz tests
2024-07-16 14:52:09 +01:00
m-holger
25e11a444a
Throw an exception if the root of the pages tree misses the /Kids array
2024-07-16 14:44:47 +01:00
m-holger
7f2d76b78d
Remove non-dictionary objects from pages tree
2024-07-16 14:35:32 +01:00
m-holger
01353e114f
Merge pull request #1241 from m-holger/fuzz
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Add further sanity checks to QPDF::reconstruct_xref
2024-07-14 23:40:29 +01:00
m-holger
f3cbaafcac
Fix QPDFOutlineDocumentHelper::resolveNamedDest ( fixes #1238 )
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Handle case where named destination is a dictionary with /D entry.
Test case is hand-edited outlines-with-old-root-dests.pdf with modified
object 107.
2024-07-14 12:15:45 +01:00
m-holger
186fca6d8d
Add further sanity checks to QPDF::reconstruct_xref
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Run getAllPages as sanity check and throw an exception if too many
warnings are generated or no pages are found.
2024-07-13 14:51:14 +01:00
m-holger
963574f27f
Refactor QPDFOutlineDocumentHelper::resolveNamedDest
2024-07-13 11:34:02 +01:00
m-holger
f4e468b180
Merge pull request #1239 from m-holger/fuzz
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Add further sanity check to QPDF::reconstruct_xref
2024-07-12 00:00:20 +01:00
m-holger
722148de3d
Further limit size of uncompressed JPEG for fuzzing
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Try a limit of 50MB. For very large limits processing time before
damage is encountered may exceed oss-fuzz limits.
Add further test cases.
2024-07-11 14:32:22 +01:00
m-holger
e914bbbbbc
Add further sanity check to QPDF::reconstruct_xref
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If reconstruct_xref generates more than 1000 warnings give up because the
file is so severely damaged that there is very little point continuing.
2024-07-11 13:25:07 +01:00
m-holger
205bd6fb61
Merge pull request #1237 from m-holger/fuzz
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Add extra sanity check on pages tree
2024-07-11 01:02:27 +01:00
m-holger
c2c1618e08
Add extra sanity check on pages tree
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Reject non-dictionary Page and Pages objects.
Also add additional qpdf_fuzzer test cases.
2024-07-10 19:03:23 +01:00
m-holger
1ec5d3daa8
Merge pull request #1236 from m-holger/fuzz
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Add additional xref reconstruction sanity checks and fuzz test cases
2024-07-10 00:29:37 +01:00
m-holger
2b6500ea17
In Pl_DCT::decompress refactor handling of corrupt data
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If throw_on_corrupt is set, use a custom implementation of libjeg's
emit_message procedure to throw an exception when the first corrupt data
warning is encountered.
2024-07-09 20:55:51 +01:00
m-holger
7172dbd4e0
Add additional fuzzer test cases
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Add test case for oss-fuzz 15471 and 69977a
2024-07-09 17:17:10 +01:00
m-holger
2e378d920d
Add additional sanity check during xref reconstruction
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Check that xref table is not empty after recovery. Empty xref tables
disable other sanity checks.
2024-07-09 17:01:44 +01:00
m-holger
7445e0ac1e
Fix QPDF::setSuppressWarnings
2024-07-09 16:38:02 +01:00
m-holger
9ffa201422
Merge pull request #1234 from m-holger/dct_fuzz
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Fix Pl_DCT memory limit
2024-07-09 00:46:14 +01:00
m-holger
43004e3399
Fix Pl_DCT memory limit
2024-07-08 13:31:02 +01:00
m-holger
55216955b7
Merge pull request #1233 from m-holger/fuzz
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Add qpdf_fuzzer test case
2024-07-08 00:22:51 +01:00
m-holger
e76d668219
Add qpdf_fuzzer test case
2024-07-07 23:58:18 +01:00
m-holger
e9df787132
Merge pull request #1231 from m-holger/fuzz
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In QPDF::processXRefIndex check number of objects in subsection is > 0
2024-07-07 00:22:52 +01:00
m-holger
c1cd3ec8a0
In QPDF::processXRefIndex check number of objects in subsection is > 0
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Fixes oss-fuzz 70055
2024-07-06 16:09:50 +01:00
m-holger
ce2deaf185
Merge pull request #1230 from m-holger/clean-dct-fuzz-changes
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Alternative clean dct fuzz changes
2024-07-06 06:10:27 +01:00
Jay Berkenbilt
7d478651d1
Ignore previous commit for git blame
2024-07-05 13:29:19 -04:00
Jay Berkenbilt
d7b909f97d
Normalize whitespace in ChangeLog
2024-07-05 13:28:49 -04:00
m-holger
f0ded6bca8
Add test case for self-referential object streams
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Previous test case was lost in #1221 . Test file was created from
object-stream.pdf by adding a reference to itself into object stream 1 0.
2024-07-04 20:40:47 +01:00
m-holger
edf3509b78
Treat corrupt JPEG streams as unfilterable
2024-07-04 17:06:42 +01:00
Jay Berkenbilt
598268f6ad
Add setMaxWarnings rather than using conditional compilation
2024-07-03 15:44:44 +01:00
Jay Berkenbilt
65bd8bc57d
Add DCT decompression config methods in favor of compile-time changes
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As a rule, we should avoid conditional compilation is it always causes
code paths that are sometimes not even seen lexically by the compiler.
Also, we want the actual code being fuzzed to be as close as possible
to the real code. Conditional compilation is suitable to handle
underlying system differences.
Instead, favor configuration using callbacks or other methods that can
be triggered in the places where they need to be exercised.
2024-07-03 15:43:38 +01:00
m-holger
b45e3420d6
Merge pull request #1228 from m-holger/fuzz7
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Add further sanity and loop detection checks
2024-07-02 01:52:14 +01:00
m-holger
a367e56afc
In QPDF::resolveObjectsInStream avoid creating xref table entries
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Invalid entries are created when objects in the stream do not have
an existing xref entry.
2024-07-02 01:16:23 +01:00
m-holger
6d640c569a
Add additional object id sanity checks
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Ensure objects with impossibly large ids are ignored.
2024-07-02 01:16:23 +01:00
m-holger
42c511198b
Suppress excessive warnings while fuzzing
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Add extra fuzz test case and amend memory limit for Pl_DCT.
2024-07-02 01:16:23 +01:00
m-holger
9081ac69cd
Merge pull request #1227 from m-holger/fuzz6
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Refine #1225
2024-06-30 01:50:36 +01:00
m-holger
09492eea06
Merge pull request #1226 from m-holger/fuzz5
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In QPDFOutlineObjectHelper detect loops in direct children
2024-06-30 01:50:16 +01:00
m-holger
18c52640cc
Refine #1225
2024-06-29 14:47:03 +01:00
m-holger
0a081e1f09
In QPDFOutlineObjectHelper detect loops in direct children
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Also, add diagnostic messages in qpdf_fuzzer and additional fuzz test case.
2024-06-29 12:38:07 +01:00
