CVE-2011-1776

Impact

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.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa039d5f6b126fbd65eefa05db2f67e44df8f121
• http://openwall.com/lists/oss-security/2011/05/10/4
• http://rhn.redhat.com/errata/RHSA-2011-0927.html
• http://securityreason.com/securityalert/8369
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
• http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt
• http://www.securityfocus.com/bid/47796
• https://bugzilla.redhat.com/show_bug.cgi?id=703026
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa039d5f6b126fbd65eefa05db2f67e44df8f121
• http://openwall.com/lists/oss-security/2011/05/10/4
• http://rhn.redhat.com/errata/RHSA-2011-0927.html
• http://securityreason.com/securityalert/8369
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
• http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt
• http://www.securityfocus.com/bid/47796
• https://bugzilla.redhat.com/show_bug.cgi?id=703026