Bug 280961 (CVE-2007-4476) - CVE-2007-4476 tar/cpio stack crashing in safer_name_suffix
Summary: CVE-2007-4476 tar/cpio stack crashing in safer_name_suffix
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2007-4476
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: http://nvd.nist.gov/nvd.cfm?cvename=C...
Whiteboard:
Depends On: 339681 339691 363881 363891 568023 568024 568025 568026 568068 568069 826654
Blocks:
TreeView+ depends on / blocked
 
Reported: 2007-09-06 17:01 UTC by Tomas Hoger
Modified: 2021-11-12 19:43 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2010-03-16 07:37:23 UTC
Embargoed:

Attachments (Terms of Use)
patch for cpio-2.6 (482 bytes, patch)
2007-10-24 15:35 UTC, Radek Brich 		no flags Details | Diff
new patch for cpio-2.6 (this one frees malloc'd memory) (603 bytes, patch)
2007-11-01 18:43 UTC, Radek Brich 		no flags Details | Diff
Show Obsolete (1) View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0141 0 normal SHIPPED_LIVE Moderate: tar security update 2010-03-15 23:55:29 UTC
Red Hat Product Errata RHSA-2010:0144 0 normal SHIPPED_LIVE Moderate: cpio security update 2010-03-16 01:15:17 UTC

Description Tomas Hoger 2007-09-06 17:01:45 UTC 
Common Vulnerabilities and Exposures assigned an identifier CVE-2007-4476
to the following vulnerability:

Bug in the safer_name_suffix function in GNU tar may lead to a "crashing
stack".  It can be used to crash tar while extracting archive containing file
with long name containing unsafe prefix.

Affected function is also part of cpio source code.

References:

http://www.novell.com/linux/security/advisories/2007_18_sr.html
http://lists.gnu.org/archive/html/bug-cpio/2007-08/msg00002.html
Comment 1 Tomas Hoger 2007-09-06 17:05:50 UTC 
Upstream patch for paxutils / paxlib (used by recent versions of tar and cpio):

http://cvs.savannah.gnu.org/viewvc/paxutils/paxutils/paxlib/names.c?r1=1.2&r2=1.4
Comment 7 Radek Brich 2007-10-24 15:35:04 UTC 
Created attachment 236281 [details]
patch for cpio-2.6

this patch should work for all affected software as the rest of patch from
comment #1 are just optimizations for memory usage (one malloc less)
Comment 8 Radek Brich 2007-10-24 15:40:00 UTC 
Fedora builds of fixed tar are now complete (with the patch from upstream):
  tar-1.15.1-27.fc6
  tar-1.15.1-28.fc7
  tar-1.17-4.fc8
  tar-1.17-4.fc9
Comment 11 Fedora Update System 2007-10-29 19:02:36 UTC 
tar-1.15.1-28.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 13 Radek Brich 2007-11-01 18:43:20 UTC 
Created attachment 245931 [details]
new patch for cpio-2.6 (this one frees malloc'd memory)
Comment 16 Radek Brich 2007-11-02 13:44:11 UTC 
fixed Fedora builds of cpio:
  cpio-2.6-22.fc6
  cpio-2.6-28.fc7
  cpio-2.9-5.fc8
  cpio-2.9-5.fc9
Comment 18 Fedora Update System 2007-11-05 15:06:18 UTC 
cpio-2.6-28.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 19 Fedora Update System 2007-11-06 16:05:52 UTC 
tar-1.17-4.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 20 Fedora Update System 2007-11-06 16:08:27 UTC 
cpio-2.9-5.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 25 errata-xmlrpc 2010-03-15 23:55:40 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2010:0141 https://rhn.redhat.com/errata/RHSA-2010-0141.html
Comment 26 errata-xmlrpc 2010-03-16 01:15:30 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0144 https://rhn.redhat.com/errata/RHSA-2010-0144.html
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