bugPSPP - Bugs: bug #61255, heap-buffer-overflow in pspp at...

 
 

bug #61255: heap-buffer-overflow in pspp at segment.c:832

Submitter:  Irfan Ariq <irfanariq>
Submitted:  Thu 30 Sep 2021 08:18:25 PM UTC
   
 
Category:  Syntax Parser Severity:  5 - Average
Status:  Cannot Reproduce Assigned to:  None
Open/Closed:  Closed Release:  None
Effort:  0.00
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Tue 05 Oct 2021 04:07:21 PM UTC, comment #1: 

Thanks a lot for filing this bug. I was able to reproduce it with PSPP 1.4.1, but not with the tip of the main branch.

Ben Pfaff <blp>
Group administrator
Thu 30 Sep 2021 08:18:25 PM UTC, original submission:  

Hello,

We are currently working on fuzz testing feature, and we found a *heap-buffer-overflow* on `pspp`.

The stack traces are as follow:
```st
==29396==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60c000000a80 at pc 0x7f85aeac4b48 bp 0x7ffc7cb19c50 sp 0x7ffc7cb19c40
READ of size 1 at 0x60c000000a80 thread T0
    #0 0x7f85aeac4b47 in segmenter_parse_string__ src/language/lexer/segment.c:832
    #1 0x7f85aeac57d9 in segmenter_parse_mid_command__ src/language/lexer/segment.c:986
    #2 0x7f85aeac8ecd in segmenter_push src/language/lexer/segment.c:1648
    #3 0x7f85aeabaf98 in lex_source_get__ src/language/lexer/lexer.c:1376
    #4 0x7f85aeab646c in lex_get src/language/lexer/lexer.c:229
    #5 0x7f85aeab2e10 in do_parse_command src/language/command.c:247
    #6 0x7f85aeab2809 in cmd_parse_in_state src/language/command.c:147
    #7 0x7f85aeab28d9 in cmd_parse src/language/command.c:162
    #8 0x55e3fdca3e30 in main src/ui/terminal/main.c:136
```
The full stack trace is attached.

*Step to reproduce*

We configured `pspp` using `CFLAGS="-g -O0 -fsanitize=address" CXXFLAGS="-g -O0 -fsanitize=address" ./configure --prefix=$(pwd)/ --without-cairo --without-perl-module` and built in using `make -j10`, and run it with:

```
./pspp /dev/null -I device=treminal <attached file> -e format=odt
```
The input file is attached.

*Environment*
- OS: Ubuntu 18.04.5 LTS
- GCC version: gcc 7.5.0
- pspp version: [pspp 1.4.1](http://mirror.yongbok.net/gnu/pspp/pspp-1.4.1.tar.gz)

Thank you.

Irfan Ariq <irfanariq>

 

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Attach Files:
   
   
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Attached Files
file #52000:  full_stacktrace_poc_4.zip added by irfanariq (1KiB - application/x-zip-compressed)
file #52001:  input_pspp_poc_4.zip added by irfanariq (304B - application/x-zip-compressed)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2021-10-05 blp CategoryNone Syntax Parser
        StatusNone Cannot Reproduce
        Open/ClosedOpen Closed
    2021-09-30 irfanariq Attached File- Added full_stacktrace_poc_4.zip, #52000
        Attached File- Added input_pspp_poc_4.zip, #52001

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