Raknet: fix heap-buffer-overflow #1531
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
```
==120637==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x606000000488 at pc 0x55a0598d97ec bp 0x7ffcfe13f2e0 sp 0x7ffcfe13f2d8
READ of size 2 at 0x606000000488 thread T0
#0 0x55a0598d97eb in ndpi_search_raknet /home/ivan/svnrepos/nDPI/src/lib/protocols/raknet.c:152:38
ntop#1 0x55a05966c48e in check_ndpi_detection_func /home/ivan/svnrepos/nDPI/src/lib/ndpi_main.c:5060:6
ntop#2 0x55a05966e428 in check_ndpi_udp_flow_func /home/ivan/svnrepos/nDPI/src/lib/ndpi_main.c:5119:10
ntop#3 0x55a05966dddc in ndpi_check_flow_func /home/ivan/svnrepos/nDPI/src/lib/ndpi_main.c:5152:12
ntop#4 0x55a05967fa7a in ndpi_detection_process_packet /home/ivan/svnrepos/nDPI/src/lib/ndpi_main.c:5971:15
ntop#5 0x55a05962b860 in LLVMFuzzerTestOneInput /home/ivan/svnrepos/nDPI/fuzz/fuzz_process_packet.c:24:3
ntop#6 0x55a05962bd9b in main /home/ivan/svnrepos/nDPI/fuzz/fuzz_process_packet.c:84:17
ntop#7 0x7f4aad7d80b2 in __libc_start_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16
ntop#8 0x55a05956b46d in _start (/home/ivan/svnrepos/nDPI/fuzz/fuzz_process_packet_with_main+0x5d746d) (BuildId: 9429d3d08edc3836e5536f93c07f140716d8b82e)
0x606000000488 is located 9 bytes to the right of 63-byte region [0x606000000440,0x60600000047f)
allocated by thread T0 here:
#0 0x55a0595ee80e in malloc (/home/ivan/svnrepos/nDPI/fuzz/fuzz_process_packet_with_main+0x65a80e) (BuildId: 9429d3d08edc3836e5536f93c07f140716d8b82e)
ntop#1 0x55a05962bd06 in main /home/ivan/svnrepos/nDPI/fuzz/fuzz_process_packet.c:70:17
ntop#2 0x7f4aad7d80b2 in __libc_start_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16
```
Found by oss-fuzz
See: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47000
|
Kudos, SonarCloud Quality Gate passed!
|
|
I was wondering why those errors were not triggered on my local pc with clang/libfuzz. |
utoni
approved these changes
Apr 25, 2022
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Found by oss-fuzz
See: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47000