REDHAT-BUG-1078201
First published: Wed Mar 19 2014(Updated: )
Qemu block drivers for parallels image and formats used by Bocsh are vulnerable to a crash caused by possible division by zero error, in seek_to_sector routine. It could occur if 's->tracks' & 's->extent_size' fields are 0. These are used to derive 'index' and 'offset' values in seek_to_sector() routine. An user able to alter the Qemu disk image could use this flaw to crash the Qemu instance resulting in DoS. Upstream fixes: --------------- parallels: Sanity check for s->tracks -> <a href="http://git.qemu.org/?p=qemu.git;a=commit;h=9302e863aa8baa5d932fc078967050c055fa1a7f">http://git.qemu.org/?p=qemu.git;a=commit;h=9302e863aa8baa5d932fc078967050c055fa1a7f</a> bochs: Check extent_size header field -> <a href="http://git.qemu.org/?p=qemu.git;a=commit;h=8e53abbc20d08ae3ec30c2054e1161314ad9501d">http://git.qemu.org/?p=qemu.git;a=commit;h=8e53abbc20d08ae3ec30c2054e1161314ad9501d</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU | ||
| QEMU | ||
| QEMU |
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Reference Links
- http://git.qemu.org/?p=qemu.git;a=commit;h=9302e863aa8baa5d932fc078967050c055fa1a7f
- http://git.qemu.org/?p=qemu.git;a=commit;h=8e53abbc20d08ae3ec30c2054e1161314ad9501d
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1086710
- https://rhn.redhat.com/errata/RHSA-2014-0421.html
- https://rhn.redhat.com/errata/RHSA-2014-0420.html
- https://rhn.redhat.com/errata/RHSA-2014-0435.html
- https://rhn.redhat.com/errata/RHSA-2014-0434.html
- https://rhn.redhat.com/errata/RHSA-2014-0674.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1078201
Frequently Asked Questions
What is the severity of REDHAT-BUG-1078201?
The severity of REDHAT-BUG-1078201 is critical due to potential crashes caused by division by zero errors.
How do I fix REDHAT-BUG-1078201?
To fix REDHAT-BUG-1078201, update QEMU to the latest version where the vulnerability has been patched.
Which software is affected by REDHAT-BUG-1078201?
REDHAT-BUG-1078201 affects QEMU block drivers for both Parallels and Bochs image formats.
What are the potential risks of not addressing REDHAT-BUG-1078201?
Not addressing REDHAT-BUG-1078201 can lead to application crashes and potential data loss during operations.
Is there a workaround for REDHAT-BUG-1078201 until it is fixed?
Currently, the best workaround for REDHAT-BUG-1078201 is to avoid using Parallels and Bochs image formats until patched.
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2014-0142
- agent/severity
- agent/references
- agent/description
- agent/event
- agent/trending
- agent/source
- agent/tags
- agent/softwarecombine
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/qemu
- canonical/qemu
- canonical/qemu parallels
- canonical/qemu bochs