Vulnerability Description
The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check the size of an Extensible Firmware Interface (EFI) GUID Partition Table (GPT) entry, which allows physically proximate attackers to cause a denial of service (heap-based buffer overflow and OOPS) or obtain sensitive information from kernel heap memory by connecting a crafted GPT storage device, a different vulnerability than CVE-2011-1577.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.39 |
| Redhat | Enterprise Linux Desktop | 5.0 |
| Redhat | Enterprise Linux Server | 5.0 |
| Redhat | Enterprise Linux Server Aus | 5.6 |
| Redhat | Enterprise Linux Server Eus | 5.6 |
| Redhat | Enterprise Linux Workstation | 5.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://openwall.com/lists/oss-security/2011/05/10/4Mailing ListPatchThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
- http://securityreason.com/securityalert/8369Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Release NotesVendor Advisory
- http://www.pre-cert.de/advisories/PRE-SA-2011-04.txtThird Party Advisory
- http://www.securityfocus.com/bid/47796Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=703026Issue TrackingPatchThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://openwall.com/lists/oss-security/2011/05/10/4Mailing ListPatchThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
- http://securityreason.com/securityalert/8369Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Release NotesVendor Advisory
- http://www.pre-cert.de/advisories/PRE-SA-2011-04.txtThird Party Advisory
- http://www.securityfocus.com/bid/47796Third Party AdvisoryVDB Entry
FAQ
What is CVE-2011-1776?
CVE-2011-1776 is a vulnerability with a CVSS score of 6.1 (MEDIUM). The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check the size of an Extensible Firmware Interface (EFI) GUID Partition Table (GPT) entry, which allows phys...
How severe is CVE-2011-1776?
CVE-2011-1776 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1776?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus.