Security Advisory mm security update

Advisory: RHSA-2002:154-05
Type: Security Advisory
Severity: Moderate
Issued on: 2002-07-25
Last updated on: 2002-07-26
Affected Products: Red Hat Enterprise Linux AS (v. 2.1)
OVAL: N/A
CVEs (cve.mitre.org): CVE-2002-0658

Details

Updated mm packages are now available for Red Hat Linux Advanced Server.
This update addresses possible vulnerabilities in how the MM library
opens temporary files.

The MM library provides an abstraction layer which allows related processes
to easily share data. On systems where shared memory or other
inter-process communication mechanisms are not available, the MM library
will emulate them using temporary files. MM is used in Red Hat Linux to
providing shared memory pools to Apache modules.

Versions of MM up to and including 1.1.3 open temporary files in an unsafe
manner, allowing a malicious local user to cause an application which uses
MM to overwrite any file to which it has write access.

All users are advised to upgrade to these errata packages which contain a
patched version of MM that is not vulnerable to this issue.

Thanks to Marcus Meissner for providing a patch for this issue.


Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

Please note that this update is available via Red Hat Network. To use Red
Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Updated packages

Red Hat Enterprise Linux AS (v. 2.1)

SRPMS:
mm-1.1.3-8.src.rpm
File outdated by:  RHBA-2003:215
    3dc7e2430ce3da32af9aafa8bae46841
 
IA-32:
mm-1.1.3-8.i386.rpm
File outdated by:  RHBA-2003:215
    37fd8b2c978aaaf7cab7c7a656003f86
mm-devel-1.1.3-8.i386.rpm
File outdated by:  RHBA-2003:215
    fe662adb1eecb6b7cddae8b2571982fd
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

59504 - *-config scripts suggests bad CFLAGS
68895 - mm not compiled to use SysV shared memory or semaphores
68896 - mm doesn't change ownership properly of SysV semaphores
69775 - MM temporary file handling


References


Keywords

file, mm, temporary


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https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/