Bug 431226 (CVE-2008-0668)

Summary: CVE-2008-0668 gnumeric: integer overflow and signedness errors in XLS processing
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: hdegoede
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: source=gentoo,reported=20080201,public=20071224,impact=moderate/important,cwe=CWE-190[auto]
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-02-26 14:04:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 431228, 431229    
Bug Blocks:    

Description Tomas Hoger 2008-02-01 16:13:37 UTC
Secunia has published an advisory regarding flaws in gnumerinc's XLS parser:


Quoting the advisory:
  The vulnerability is caused due to integer overflows and signedness errors
  when processing XLS HLINK opcodes within the "excel_read_HLINK()" function
  in plugins/excel/ms-excel-read.c. This can be exploited to corrupt the stack
  via a specially crafted XLS file.

  Successful exploitation allows execution of arbitrary code.

  The vulnerability is confirmed in version 1.6.3. Versions prior to 1.8.1 may
  also be affected.

Described issue should be fixed in upstream version 1.8.1.


Patch as committed to upstream SVN:

Comment 2 Fedora Update System 2008-02-04 16:09:25 UTC
gnumeric-1.6.3-14.fc8 has been submitted as an update for Fedora 8

Comment 3 Fedora Update System 2008-02-04 16:09:55 UTC
gnumeric-1.6.3-14.fc7 has been submitted as an update for Fedora 7

Comment 4 Fedora Update System 2008-02-07 20:54:40 UTC
gnumeric-1.6.3-14.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2008-02-07 21:01:25 UTC
gnumeric-1.6.3-14.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.