CVE-2007-5498
First published: Wed Nov 07 2007(Updated: )
Description of problem: The blkif_get_x86_32_req() and blkif_get_x86_64_req() functions don't sanity-check the req->nr_segments value. The functions are part of the 32-on-64 support. They translate block I/O request structs from 32bit ABI to 64bit ABI and visa versa. They are used in case 32bit paravirtualized guests (or 32bit hvm guests with pv-on-hvm drivers installed) are running on a 64bit host. Version-Release number of selected component (if applicable): RHEL 5.1 kernel.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | =2.6.18 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=369531
- http://www.redhat.com/support/errata/RHSA-2008-0233.html
- http://www.securityfocus.com/bid/29082
- http://secunia.com/advisories/30116
- http://www.ubuntu.com/usn/usn-679-1
- http://secunia.com/advisories/32918
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42274
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9452
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=250031&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=250031&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=250281&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=250281&action=edit
- http://xenbits.xensource.com/linux-2.6.18-xen.hg?diff/cf8b6cafa2f0/include/xen/blkif.h
Frequently Asked Questions
What is the severity of CVE-2007-5498?
CVE-2007-5498 has a medium severity rating due to the potential for denial of service in specific circumstances.
How do I fix CVE-2007-5498?
To fix CVE-2007-5498, update the Linux kernel to a version higher than 2.6.18 where the vulnerability is patched.
Who is affected by CVE-2007-5498?
CVE-2007-5498 affects systems running Linux kernel version 2.6.18 and is particularly relevant for those using the 32-on-64 support.
What systems are vulnerable to CVE-2007-5498?
Systems using the Linux kernel version 2.6.18 are vulnerable to CVE-2007-5498.
Can CVE-2007-5498 lead to data loss?
While CVE-2007-5498 mainly poses a risk of denial of service, it could indirectly lead to data loss if a service interruption occurs.
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