RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1470946 - There is a heap-buffer-overflow in image.cpp of exiv2.
Summary: There is a heap-buffer-overflow in image.cpp of exiv2.
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: exiv2
Version: 7.5-Alt
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: rc
: ---
Assignee: Jan Grulich
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks: CVE-2017-11339
TreeView+ depends on / blocked
 
Reported: 2017-07-14 06:21 UTC by owl337
Modified: 2019-08-06 12:47 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-08-06 12:46:47 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Triggered by "./exiv2 $POC" (127 bytes, application/x-rar)
2017-07-14 06:21 UTC, owl337 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:2101 0 None None None 2019-08-06 12:47:09 UTC

Description owl337 2017-07-14 06:21:58 UTC 
Created attachment 1298133 [details]
Triggered by  "./exiv2 $POC"

Description of problem:

There is a heap-buffer-overflow in Exiv2::Image::printIFDStructure  of image.cpp in exiv2.

Version-Release number of selected component (if applicable):

<= latest version

How reproducible:

./exiv2 $POC

Steps to Reproduce:

The output information is as follows:

$./exiv2 POC5
*** Error in `/home/icy/real/exiv2/bin/.libs/lt-exiv2': free(): invalid next size (fast): 0x00000000015597b0 ***
Aborted


GDB debugging information is as follows:
(gdb) set args POC5
(gdb) r
 ...
Breakpoint 5, Exiv2::Image::printIFDStructure (this=<optimized out>, io=..., out=..., option=Exiv2::kpsRecursive, 
    start=0, bSwap=<optimized out>, c=<optimized out>, depth=0) at image.cpp:404
404	                std::memcpy(buf.pData_,dir.pData_+8,4);  // copy dir[8:11] into buffer (short strings)

(gdb) bt
#0  Exiv2::Image::printIFDStructure (this=<optimized out>, io=..., out=..., option=Exiv2::kpsRecursive, start=0, 
    bSwap=<optimized out>, c=<optimized out>, depth=0) at image.cpp:404
#1  0x00007ffff70b90e1 in Exiv2::Image::printTiffStructure (this=0x61300000de80, io=..., out=..., 
    option=Exiv2::kpsRecursive, depth=-1, offset=<optimized out>) at image.cpp:518
#2  0x00007ffff71972ac in Exiv2::OrfImage::printStructure (this=<optimized out>, out=..., option=<optimized out>, 
    depth=<optimized out>) at orfimage.cpp:104
#3  0x00007ffff7198631 in Exiv2::OrfImage::readMetadata (this=<optimized out>) at orfimage.cpp:123
#4  0x0000000000518d8c in Action::Print::printSummary (this=<optimized out>) at actions.cpp:289
#5  0x0000000000518489 in Action::Print::run (this=0x60400000d950, path=...) at actions.cpp:244
#6  0x00000000004e2ebc in main (argc=<optimized out>, argv=<optimized out>) at exiv2.cpp:170
(gdb) s
=================================================================
==46719==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000ed93 at pc 0x7ffff70b7adb bp 0x7fffffffbe10 sp 0x7fffffffbe08
WRITE of size 4 at 0x60200000ed93 thread T0
    #0 0x7ffff70b7ada  (/home/icy/real/exiv2-asan/install/lib/libexiv2.so.26+0x43bada)
    #1 0x7ffff70b90e0  (/home/icy/real/exiv2-asan/install/lib/libexiv2.so.26+0x43d0e0)
    #2 0x7ffff71972ab  (/home/icy/real/exiv2-asan/install/lib/libexiv2.so.26+0x51b2ab)
    #3 0x7ffff7198630  (/home/icy/real/exiv2-asan/install/lib/libexiv2.so.26+0x51c630)
    #4 0x518d8b  (/home/icy/real/exiv2-asan/install/bin/exiv2+0x518d8b)
    #5 0x518488  (/home/icy/real/exiv2-asan/install/bin/exiv2+0x518488)
    #6 0x4e2ebb  (/home/icy/real/exiv2-asan/install/bin/exiv2+0x4e2ebb)
    #7 0x7ffff5e29abf  (/lib/x86_64-linux-gnu/libc.so.6+0x20abf)
    #8 0x43b288  (/home/icy/real/exiv2-asan/install/bin/exiv2+0x43b288)

0x60200000ed93 is located 2 bytes to the right of 1-byte region [0x60200000ed90,0x60200000ed91)
allocated by thread T0 here:
    #0 0x4e1842  (/home/icy/real/exiv2-asan/install/bin/exiv2+0x4e1842)
    #1 0x7ffff70b0c5f  (/home/icy/real/exiv2-asan/install/lib/libexiv2.so.26+0x434c5f)
    #2 0x7ffff70b90e0  (/home/icy/real/exiv2-asan/install/lib/libexiv2.so.26+0x43d0e0)

Shadow bytes around the buggy address:
  0x0c047fff9d60: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9d70: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9d80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9d90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff9da0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c047fff9db0: fa fa[01]fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
  0x0c047fff9dc0: fa fa 06 fa fa fa 00 04 fa fa 00 04 fa fa 00 04
  0x0c047fff9dd0: fa fa 00 04 fa fa 00 04 fa fa 00 04 fa fa 00 04
  0x0c047fff9de0: fa fa 00 04 fa fa 00 04 fa fa 00 04 fa fa 00 04
  0x0c047fff9df0: fa fa 00 04 fa fa 00 04 fa fa 00 04 fa fa fd fa
  0x0c047fff9e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==46719==ABORTING
[Inferior 1 (process 46719) exited with code 01]


This vulnerability was triggered in Exiv2::Image::printIFDStructure () at image.cpp:404.

338	    void Image::printIFDStructure(BasicIo& io, std::ostream& out, Exiv2::PrintStructureOption option,uint32_t start,bool bSwap,char c,int depth)
	    {
...	
399	                                : 1
400	                                ;
401	
402	                // if ( offset > io.size() ) offset = 0; // Denial of service?
403	                DataBuf  buf(size*count + pad+20);  // allocate a buffer
404	                std::memcpy(buf.pData_,dir.pData_+8,4);  // copy dir[8:11] into buffer (short strings)
405	                if ( count*size > 4 ) {            // read into buffer
406	                    size_t   restore = io.tell();  // save
407	                    io.seek(offset,BasicIo::beg);  // position
408	                    io.read(buf.pData_,count*size);// read
...

	     }


Actual results:

crash

Expected results:

crash

Additional info:

This vulnerability is detected by team OWL337, with our custom fuzzer collAFL. Please contact ganshuitao   and chaoz.cn if you need more info about the team, the tool or the vulnerability.
Comment 2 Adam Mariš 2017-07-24 12:42:03 UTC 
Please, report this issue to upstream. Thanks!
Comment 3 Raphaël Hertzog 2017-08-31 14:25:37 UTC 
I forwarded this report to upstream: https://github.com/Exiv2/exiv2/issues/52
Comment 5 Jan Grulich 2019-01-28 16:08:27 UTC 
Fixed with exiv2-0.27.0-1.el7_6.
Comment 9 errata-xmlrpc 2019-08-06 12:46:47 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2019:2101
Note You need to log in before you can comment on or make changes to this bug.