Bug 1222892 (CVE-2015-4037) - CVE-2015-4037 qemu: insecure temporary file use in /net/slirp.c
Summary: CVE-2015-4037 qemu: insecure temporary file use in /net/slirp.c
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2015-4037
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: 1222894
Blocks: 1222893
TreeView+ depends on / blocked
 
Reported: 2015-05-19 11:59 UTC by Martin Prpič
Modified: 2021-02-17 05:17 UTC (History)
32 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-08-26 17:43:16 UTC

Attachments (Terms of Use)

Description Martin Prpič 2015-05-19 11:59:37 UTC 
Qemu's user mode networking stack(SLiRP) is vulnerable to a predictable temporary file names creation flaw. It occurs when using -smb option.

An unprivileged user could use this to thwart instantiation of Qemu guests, resulting in DoS.

Reference:
  -> http://seclists.org/oss-sec/2015/q2/426
Comment 1 Martin Prpič 2015-05-19 12:01:02 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1222894]
Comment 2 Prasad Pandit 2015-05-28 07:54:55 UTC 
Statement: 

This issue affects the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5, the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7, and the versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.
Comment 3 Prasad Pandit 2015-05-28 13:09:16 UTC 
This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Comment 4 Fedora Update System 2015-06-11 18:35:34 UTC 
qemu-2.3.0-5.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2015-06-21 00:15:57 UTC 
qemu-2.1.3-8.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
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