Bug 810807 (CVE-2012-2107) - CVE-2012-2107 Csound: Integer overflow leading to buffer overflow in lpc_import
Summary: CVE-2012-2107 Csound: Integer overflow leading to buffer overflow in lpc_import
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2012-2107
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 812721
Blocks: 810821
TreeView+ depends on / blocked
 
Reported: 2012-04-09 08:56 UTC by Huzaifa S. Sidhpurwala
Modified: 2019-09-29 12:51 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-01-20 14:18:33 UTC
Embargoed:

Attachments (Terms of Use)

Description Huzaifa S. Sidhpurwala 2012-04-09 08:56:47 UTC 
An integer overflow, leading to a heap-based buffer overflow was found in lpc_import utility. If a specially crafted CSV file was opened by the lpc_import utility, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running lpc_import

Reference:
http://secunia.com/secunia_research/2012-6/

Possible patch:
http://csound.git.sourceforge.net/git/gitweb.cgi?p=csound/csound5.git;a=commitdiff;h=61d1df45ca9a52bab62892a3c3a13c41e6384505#patch2
Comment 1 Huzaifa S. Sidhpurwala 2012-04-16 05:27:22 UTC 
The commit date does not match the secunia advisory, but this seems to be the only commit which matches the flaw description.

coef = (MYFLT *)malloc((hdr.npoles+hdr.nvals)*sizeof(MYFLT)); would cause an integer overflow and later when data was copied into coef at:
fread(&coef[0], sizeof(MYFLT), hdr.npoles, inf); it would cause an heap-based buffer overflow as well.
Comment 2 Huzaifa S. Sidhpurwala 2012-04-16 05:30:24 UTC 
Created csound tracking bugs for this issue

Affects: fedora-all [bug 812721]
Comment 3 Kurt Seifried 2012-04-16 19:33:33 UTC 
Assigned CVE as per http://www.openwall.com/lists/oss-security/2012/04/16/9
Comment 4 Peter Robinson 2016-01-20 14:18:33 UTC 
csound 6 is in all current releases (from GA)
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