Buffer overflow in Linux Kernel
CVE-2011-1776
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.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (42.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Linux Linux_kernel
- Redhat Enterprise_linux_desktop — versions 5.0
- Redhat Enterprise_linux_server — versions 5.0
- Redhat Enterprise_linux_server_aus — versions 5.6
- Redhat Enterprise_linux_server_eus — versions 5.6
- Redhat Enterprise_linux_workstation — versions 5.0
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory, x_refsource_SREASON, third-party-advisory)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_CONFIRM, Release Notes, Vendor Advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2011-1776?
- CVE-2011-1776 is a medium-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.1/10. Published 2011-09-06.
- How severe is CVE-2011-1776?
- Medium severity. CVSS v3 base score is 6.1 out of 10.