Bug 681667 (CVE-2011-0762) - CVE-2011-0762 vsftpd: remote DoS via crafted glob pattern
Summary: CVE-2011-0762 vsftpd: remote DoS via crafted glob pattern
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2011-0762
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 681891 681892 681893 681894 681920 681935
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-03-02 21:37 UTC by Vincent Danen
Modified: 2019-09-29 12:43 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-08-30 10:55:01 UTC
Embargoed:

Attachments (Terms of Use)
relevant bits extracted from 2.3.2/2.3.3 diff (3.65 KB, patch)
2011-03-02 21:40 UTC, Vincent Danen 		no flags Details | Diff
2.3.2 -> 2.3.4 changes relevant to this issue. (4.75 KB, patch)
2011-03-03 08:41 UTC, Tomas Hoger 		no flags Details | Diff
Show Obsolete (1) View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0337 0 normal SHIPPED_LIVE Important: vsftpd security update 2011-03-09 22:03:35 UTC

Description Vincent Danen 2011-03-02 21:37:24 UTC 
Common Vulnerabilities and Exposures assigned an identifier CVE-2011-0762 to
the following vulnerability:

Name: CVE-2011-0762
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0762
Assigned: 20110203
Reference: http://securityreason.com/achievement_securityalert/95
Reference: http://www.securityfocus.com/archive/1/archive/1/516748/100/0/threaded
Reference: http://cxib.net/stuff/vspoc232.c
Reference: ftp://vsftpd.beasts.org/users/cevans/untar/vsftpd-2.3.4/Changelog
Reference: http://www.kb.cert.org/vuls/id/590604
Reference: http://www.securityfocus.com/bid/46617

The vsf_filename_passes_filter function in ls.c in vsftpd before 2.3.3
allows remote authenticated users to cause a denial of service (CPU
consumption and process slot exhaustion) via crafted glob expressions
in STAT commands in multiple FTP sessions, a different vulnerability
than CVE-2010-2632.
Comment 1 Vincent Danen 2011-03-02 21:40:14 UTC 
Created attachment 481947 [details]
relevant bits extracted from 2.3.2/2.3.3 diff

This should be the relevant bits from the diff of upstream 2.3.2 and 2.3.3 versions, and should correct the flaw.
Comment 3 Tomas Hoger 2011-03-03 08:40:28 UTC 
(In reply to comment #1)
> This should be the relevant bits from the diff of upstream 2.3.2 and 2.3.3
> versions, and should correct the flaw.

Looking at the 2.3.3 -> 2.3.4 diff, described in the changelog as:

  - Fix compile. Extreme suckage.

Failed compile is related to this fix, so 2.3.2 -> 2.3.4 diff is what we should be using.
Comment 4 Tomas Hoger 2011-03-03 08:41:48 UTC 
Created attachment 482013 [details]
2.3.2 -> 2.3.4 changes relevant to this issue.
Comment 12 Tomas Hoger 2011-03-03 16:18:30 UTC 
Created vsftpd tracking bugs for this issue

Affects: fedora-all [bug 681935]
Comment 15 errata-xmlrpc 2011-03-09 22:03:41 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2011:0337 https://rhn.redhat.com/errata/RHSA-2011-0337.html
Comment 16 davidyangyi 2012-08-30 02:55:34 UTC 
which version of vsftpd fix the vsf_filename_passes_filter Vulnerabilities issue in redhat release?
Comment 17 Jan Lieskovsky 2012-08-30 10:46:02 UTC 
(In reply to comment #16)
> which version of vsftpd fix the vsf_filename_passes_filter Vulnerabilities
> issue in redhat release?

As noted in comment c#15, the CVE-2011-0762 was corrected in Red Hat Enterprise Linux 4, 5, and 6 via RHSA-2011:0337 advisory. See https://rhn.redhat.com/errata/RHSA-2011-0337.html for concrete package versions for particular system / release.

Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team
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