Bug 1300330 (CVE-2016-2050) - CVE-2016-2050 libdwarf: Out-of-bounds write in get_abbrev_array_info
Summary: CVE-2016-2050 libdwarf: Out-of-bounds write in get_abbrev_array_info
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-2050
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1300332 1300333
Blocks: 1299970
TreeView+ depends on / blocked
 
Reported: 2016-01-20 13:40 UTC by Adam Mariš
Modified: 2021-02-17 04:29 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-04-01 15:52:15 UTC
Embargoed:

Attachments (Terms of Use)

Description Adam Mariš 2016-01-20 13:40:39 UTC 
An out-of-bounds write vulnerability was found in libdwarf-20151114 in get_abbrev_array_info function.

CVE request (contains reproducer and valgrind report):

http://seclists.org/oss-sec/2016/q1/141
Comment 1 Adam Mariš 2016-01-20 13:41:22 UTC 
Created libdwarf tracking bugs for this issue:

Affects: fedora-all [bug 1300332]
Affects: epel-all [bug 1300333]
Comment 3 Cedric Buissart 2016-04-01 15:48:55 UTC 
This bug appears to have been introduced by the following upstream commit from  Wed Dec 31 16:45:14 2014 -0800 :
https://github.com/tomhughes/libdwarf/commit/3ff5a4a024924

and is resolved by the following commit :
https://github.com/tomhughes/libdwarf/commit/a05f5e2ae6a5f

Red Hat Enterprise Linux v.7 is shipped with an earlier version and is not impacted.
Comment 4 Cedric Buissart 2016-04-01 15:49:35 UTC 
Statement:

This issue did not affect the versions of libdwarf as shipped
with Red Hat Enterprise Linux 7.
Comment 5 Cedric Buissart 2016-04-01 15:51:38 UTC 
External BTS bug for CVE-2016-2050: 
 Bug 963791 - (CVE-2016-2050) VUL-1: CVE-2016-2050: libdwarf: Out-of-bounds write in get_abbrev_array_info 
https://bugzilla.novell.com/show_bug.cgi?id=963791
Note You need to log in before you can comment on or make changes to this bug.