Bug 516171 (CVE-2009-2691) - CVE-2009-2691 kernel: /proc/$pid/maps visible during initial setuid ELF loading
Summary: CVE-2009-2691 kernel: /proc/$pid/maps visible during initial setuid ELF loading
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2009-2691
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: 516684 516685 516686 516687 516688 516689
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-08-07 07:00 UTC by Eugene Teo (Security Response)
Modified: 2019-09-29 12:31 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-04-22 13:25:17 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:1540 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2009-11-03 18:21:07 UTC

Description Eugene Teo (Security Response) 2009-08-07 07:00:46 UTC
Description of problem:
From Kees Cook: Steve Beattie and I noticed that the /proc/$pid/maps and smaps files are readable during ELF loading for processes that a user should not normally be able to see (for example, when launching a setuid process).

Comment 16 John Kacur 2009-08-17 13:02:52 UTC
[jkacur@tycho rt.linux.git]$ git describe --contains 13f0feafa6b8aead57a2a328e2fca6a5828bf286
v2.6.31-rc6~23^2~2

[jkacur@tycho rt.linux.git]$ git describe --contains 00f89d218523b9bf6b522349c039d5ac80aa536d
v2.6.31-rc6~23^2~1
 
[jkacur@tycho rt.linux.git]$ git describe --contains 704b836cbf19e885f8366bccb2e4b0474346c02d
v2.6.31-rc6~23^2

The current MRG V2 kernel is currently based on 2.6.31-rc6 which contains
all of the relevant commits.

Comment 18 Fedora Update System 2009-08-26 05:12:00 UTC
kernel-2.6.29.6-217.2.16.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/kernel-2.6.29.6-217.2.16.fc11

Comment 19 Fedora Update System 2009-08-27 02:18:48 UTC
kernel-2.6.29.6-217.2.16.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 20 errata-xmlrpc 2009-11-03 18:21:28 UTC
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2009:1540 https://rhn.redhat.com/errata/RHSA-2009-1540.html


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